Super Bowl Squares 2023 - Unlimited Ways to Play

Since 54 ways to play still wasn't enough, I've created a new version of my Super Bowl Squares template that should allow nearly limitless ways to play. I'm going to show you how to use it and what make it awesome. But first, let's take a quick look back at the evolution of my football grid game template.

I’ve been making Super Bowl Squares templates available for you to download for over 10 years now. The first version in 2012 was very plain and simple and was basically just meant to be printed.

I started adding more features and automation in 2014, beginning with a button you would click that runs a macro to generate the random numbers. 

The problem I soon discovered is there are countless ways to play Super Bowl Squares. Initially, I tried to account for different ways to play by having multiple sheets within the workbook. But this got very messy very quickly. A new user would open the template and could be very confused by all the sheets. I wanted a better solution.

In 2021, I released a new version that featured 54 different ways to play Super Bowl Squares all contained within one easy to use spreadsheet. When you first open the sheet, it has a nice clean look with only one sheet visible. You select the options for how you want to play, click Generate Squares, and it sets up the sheet exactly for the version you want to play.

The way it works is all the scoring systems are already built into the sheet. If you go to the Squares or the Manager sheet you will find many hidden rows or columns. The Generate Squares macro simply hides or unhides the data based on the user’s selections.

54 ways to play is a lot – but it is still not enough. Over the years I continued to receive countless requests for different ways to play. I don’t have time to make very specific sheets for each individual request – I needed a solution to account for unlimited ways to play. 

That’s when I had the idea for Super Bowl Squares Unlimited. The main difference in how it works is there are no pre-built scoring systems. Instead, they are built on the fly by macros. 

If you’re using iOS or cannot enable macros you will not be able to use this sheet, sorry. The is a simple printable PDF in the download and here is a Google sheet.

The first thing you’ll want to do is go to the Manager sheet and complete columns B and C by inputting all the player names and using the drop down to select how many squares for each. You can type the names manually into each square but you would also have to list the names on the Manager sheet and make sure they match (no typos). 

Back to the Squares sheet, the buttons in the Grid Tools box are pretty self explanatory. On the squares sheet, click the Random Names button to populate the grid with the player names in random positions. Click Randomize Numbers to generate the list of random numbers. Similar to previous sheet.

The main difference that gives this sheet more flexibility is the score boards are not built in, they are generated when the user clicks the Generate Scoreboard button every time there is a scoring event. Meaning, the settings can be changed. Let’s look at some examples.

Download 2023 Super Bowl Squares here

So that’s how you use the Super Bowl Squares Unlimited spreadsheet template. I’m excited to hear your thoughts. Is it better than the previous sheet? This is brand new and hasn’t been tested too much so there could be some bugs. But I’d love to know your thoughts on which sheet you will use and why so leave me a comment or email. Thanks for watching and have fun playing Super Bowl Squares!

Using OpenAI's ChatGPT to Update My Year in Pixels Excel Template

I've been seeing more and more videos on TikTok about this mysterious new artificial intelligence program called ChatGPT. People are saying it will eventually replace Google search. But what really got my attention was a demonstration of ChatGPT writing VBA macros for Microsoft Excel. Now I knew I had to try it for myself. 

I made a Year in Pixels Excel template to track my daily mood back in 2018 but haven't updated it lately. Since it's the start of a new year, I recently received some new comments and questions about how to use and modify the spreadsheet so I figured now would be a great time to update it and add a few new features. Then I had an idea - why don't I use this opportunity to update my mood tracking Excel template to try out ChatGPT? Let's give it a go!

How to have cell fill color conditional formatting change based on the color of another cell?

The request from a user that got me thinking was "how to easily change the colors in my year in pixels sheet?" An experienced Excel user could probably ascertain the colors are applied by conditional formatting formula rules. However, for users who are not Excel savvy, it's not very obvious and there should be an easier way to change the colors. As far as I know, there is none, or at least no easy way in my current version of Excel, to have the fill color in the conditional formatting reference another cell's color. So instead, I will have a macro update the conditional formatting rules at the click of a button. Let's jump over to ChatGPT.

How does ChatGPT work?

Here's the answer after asking it directly: 

GPT (Generative Pre-trained Transformer) is a type of language model developed by OpenAI that uses a transformer neural network architecture to generate text. GPT is trained on a large dataset of text and uses this training to generate new text that is similar in style and content to the training data.

ChatGPT is a variant of GPT that has been fine-tuned on a specific task, such as having conversations with humans. To fine-tune GPT for this task, ChatGPT is trained on a large dataset of conversation data and learns to predict the next word in a conversation based on the words that came before it.

When you input a message to ChatGPT, it processes the message and uses its knowledge of language and conversation patterns to generate a response. It does this by predicting the next word in the conversation based on the input it has received and the context of the conversation so far. The output of ChatGPT is then a response that is generated based on this prediction.

One thing to keep in mind right off the bat: ChatGPT is not always right. It says it right there on the main page under limitations: may occasionally generate incorrect information; may occasionally produce harmful instructions.

For example, I asked "list the ten tallest roller coasters in the world" which should be fairly easy and instead it produces a list that is incorrect and doesn't even make sense.

Not a great start but let's see how it does creating a macro from scratch.

Creating Custom VBA Macros Automatically with ChatGPT

I wasn't sure how specific I needed to be so I decided to err on the side of caution, plus I thought the more detailed I am the less modification I'll probably need to do later. Now I ask ChatGPT: "create a vba macro to make a new conditional formatting rule where range is C4 to N34, if cell value = 5 then change the fill color to the same color as in cell P12." Then it began typing and my jaw dropped.

I copied and pasted the code into Excel VBA editor and it worked! One thing I forgot is this macro will just add new rules applied to the same range. I need to delete all the existing formatting rules before adding new ones, so I ask ChapGPT:

I added the above code to the earlier response and linked it to a newly added button on my sheet. Now a user can change the fill color of a cell, click the button, and the fill colors update automatically to match.

If you want to see all this play out in real time, watch the video I recorded below:

Thoughts on the Future of ChatGPT

It's awesome that it doesn't just spit out the code, but it also suggests how you might need to modify it AND tells you how to run the macro as well. Even though I've only asked it to make simple macros, I already see how this program could save a lot of time.

I'm not done experimenting but so far ChatGPT seems like a much better option over Recoding macros or Google searches that might take you a few tries to find exactly what you're looking for. Especially when you can get custom code on the fly. On one hand, I feel a little obsolete, but on the other I also don't think ChatGPT will completely be replacing programmers just yet as you can see I still had to understand the code and modify it to fit my exact needs.

Download my Year in Pixels template for free here and try it for yourself. Open the macro editor to view the final codes written by ChatGPT.

How to change relative hyperlink to exact link in Excel

You may have used the HYPERLINK function in Excel before but what you may not have released is your links can be either relative or absolute (or sometimes called exact or specific). What does this even mean? And how do you change from relative to exact?

2021 NFL Draft Game Spreadsheet Template

It’s been one year since the COVID-19 pandemic began. Last year, since March Madness and other sports at the time were cancelled, I started thinking about what other things I could do to fill in the void of not having any March Madness brackets to fill out. The answer came in a suggestion from a reader to create an NFL Draft game spreadsheet. I’ve updated the template for this year.

Inside this template I've listed the top 100 draft prospects according to ESPN. Each draft game player (and the template is currently setup to handle ten players) are randomly assigned ten future NFL players by using a randomize macro. The earlier your players get drafter the better, as the draft position counts for points and the lowest number of points wins!

The random number macro is pretty simple:

'define range of cells for random numbers

Dim Player1 As Range

Set Player1 = Range("AN2:AN101")

Player1.ClearContents

For Each a In Player1

Do

a.Value = (Int((100 * Rnd + 1)))

Loop Until WorksheetFunction.CountIf(Player1, a.Value) < 2

Next

Based on some good user feedback I added the option where each player can now try to predict which team will select their players for additional bonus points. Well, negative bonus points that is, as it subtracts points from your total score (remember, lowest score wins).

See how the Draft Game spreadsheet works in the video below:

Even if you have no interest in the NFL, football, or drafts, you can still learn a bit about Excel by examining the random number generator macro, or the vlookup and sumif formulas used. The scoreboard uses a “rank without ties” formula:

 =(IF(D3<>"",(RANK(D3,$D$3:$D$52)+COUNTIF(D$3:D3,D3)-1),""))

For now, the spreadsheet is setup to handle ten players. To add more, the formulas and macro will need to be modified. If enough people are interested in using this sheet, I will work on making it scalable so it can automatically adjust to the exact number of players.

2021 NFL Draft Game Spreadsheet Template.xlsm 

Let me know if you like this game or if you have any suggestions or questions.

COVID-19 Vaccine Distribution Tracking Template

Not sure if this is helpful to anyone but I made a COVID-19 Vaccine Distribution Tracking document in Excel. It’s hard to make a spreadsheet that you’re probably not going to use personally yourself. But I tried to envision being in management of a company or nursing home or school that needed to:

 (1) prioritize which employees or residents or teachers should get the vaccine first and

 (2) track which people have actually gotten the vaccine and when.

 

What Order to Distribute the Vaccine

The first item I tackled was how do you decide in what order to give out the vaccine. Knowing that supplies are limited, who gets the first dose?

I use a scoring system to decide the priority order: the highest score is first in line to get their shots.

 Here’s how the score is calculated:

1. Age: the score starts with the person’s age. 30 years old = 30 points. The older population automatically has a higher score.
2. Age multiplier: I made up a tier system based on age. Based on earlier data I’ve seen, the chance of dying from COVID if you’re 59 years or younger is only around 1% or less, but this jumps up to nearly 20% if you’re 80 or older. In my scoring system, those 60 and older get varying amounts of “bonus” points added to their score depending on what age range tier they fall into.
3. Priority person: Yeah, you could just rank vaccination order by age and be done with it but I didn’t want age to be the only limiting factor. There are other variables that I wanted to account for. I added the ability for a person to be marked as “high priority”, maybe due to immune deficiency or because they’re a first responder, or pregnant – whatever you want it to be. This adds 11 points to their score to help bump them up in the distribution order. Again, the spreadsheet is easily customizable so you can change the bonus to whatever value fits your needs.
4. Male or female: This might be controversial, but I added a segment to the scoring where males get a slight score increase over females. From the data I have (and please send me any new information if you think I’m wrong) males have a ~3% higher death rate from COVID than females (women are generally better at fighting off infections I’ve heard) so they get +3 point bonus while females get none. Of course, feel free to change this setting to make it what you want. Give woman 1,000 bonus points and men 0 – it’s up to you and can be easily changed in the spreadsheet.

The total score is calculated by adding up the age, the age tier multiplier, the male/female bonus, and the priority bump. The biggest factor is age, as that is the biggest factor of death rate. While getting the highest score means you’re first in line to get the vaccine, that also means you have the highest risk of dying from COVID.  I then use the RANK function in Excel to rank the individuals from highest to lowest score. There’s your priority list of who gets the vaccine first.

Vaccine Distribution Tracking

The next component, after deciding the vaccination order, is to then track if these people actually got the vaccine. Complicating matters, there are (right now) two different vaccines being distributed in the US requiring two separate doses and the time between doses is different. Each vaccine also has a minimum age requirement that is different so there is a formula to make sure the individual is old enough to get the selected vaccine. If they’re not eligible, meaning you’re too young, your score automatically goes to 0 and I use condition formatting to turn the cells black to show the individual shouldn’t be scheduled to get a shot. Once you get the first dose, enter the date and the spreadsheet will tell you when the earliest is you can get the second dose based on which vaccine you got. Finally, you can quickly see how many of your employees or residents have received the first or second doses of the vaccine.

 Download the spreadsheet here: https://gumroad.com/l/covid-tracker

I’ve been wanting to put my Excel powers to good use rather than just making Super Bowl squares or football related spreadsheets. Not sure the legality of it but if I was in charge of a company with employees working from home I would want to know when it is safe to bring that back into the office. Try it out and let me know what you think!

5 Lessons Learned from Super Bowl Squares 2016 to Improve Your Excel Skills

Last week I released the latest and greatest version of my Super Bowl squares game template with more ways to play than before. Even if you don’t care for football or sports, numerous lessons can be learned by dissecting this spreadsheet, including:

• How to assign a macro to a command button
• How to clear cells with a macro
• How to generate random numbers in Excel with a macro
• How to use a macro to create a list based on cell values
• How to create a dynamic drop down list

I thought I would offer a few more details and insights into how each of these features work.

1. How to assign a macro to a command button

To insert a command button into your Excel spreadsheet you’ll want the Developer tab to be available. Go to File > Options> Customize Ribbon and under Main Tabs check Developer. Now at the top of Excel you should see the Developer tab. Click on the Insert button drop drown, then under form controls click Command Button. Place the button wherever you want along with the desired size. To have a macro run on the click of the button, right click the command button and select Assign macro. Pick your macro and you’re good to go!

2. How to Clear a Range with an Excel Macro

To clear a range with an Excel macro, use the code below. When you click the “Clear Numbers” button, it is linked to this macro and will clear the range.

Sub Clear_Random_Numbers()
'clear the random numbers
Dim DelRange As Range
Set DelRange = Range("B5:B14")
DelRange.ClearContents
End Sub

Unlike a formula, if you insert a row or column and your target range moves, the macro will not update automatically like a formula will. Keep this in mind when making changes to a spreadsheet containing a macro. It’s a good idea to have the layout and format fixed as much as possible before writing your macro code.

3. How to generate random numbers in Excel with a macro

To generate random numbers in a range with a macro, modify the code below. This code generates random numbers between 0 and 9. To start from 1, take out the “-1”. To get more random numbers, change 10 to 100 or whatever value you need.

Sub Generate_Random_Numbers()
'define range of cells for NFC random numbers
Dim NFCRange As Range
Set NFCRange = Range("B5:B14")
NFCRange.ClearContents
For Each c In NFCRange
Do
c.Value = (Int((10 * Rnd + 1))) - 1
Loop Until WorksheetFunction.CountIf(NFCRange, c.Value) < 2
Next

4. Macro to Create a List Based on Cell Values

The next macro for the Super Bowl squares sheet is for the Assign Names Randomly sheet. This style of play allows users to enter their name then input how many squares they want. So we need to generate the complete list of names. The key to this program is getting the row numbers to add correctly.

Nick 3
Sarah 2
Henry 1

List would look like this:

Nick
Nick
Nick
Sarah
Sarah
Henry

How do we get the result? Use loops to repeat the code that adds the name to the list.

Sub Assign_Random_Number_For_Names()
'stop screen updating so macro runs faster
Application.ScreenUpdating = False
'clear the range
Dim DelRange As Range
Set DelRange = Range("AA2:AA101")
DelRange.ClearContents

'generate a list of all the names in order to populate the field
Dim row As Integer
Dim NumberSquares As Integer
Dim Squares As Integer
Dim RowNum As Integer
Dim PlayerName As String

RowNum = 2

For row = 2 To 101

NumberSquares = Excel.Cells(row, 24)

For Squares = 1 To NumberSquares
PlayerName = Excel.Cells(row, 23)

Excel.Cells(RowNum, 27) = PlayerName

RowNum = RowNum + 1

Next

Next

5. How to create a dynamic drop down list

In this spreadsheet you may have also noticed I used a dynamic list – a drop down list where the values change based on other cell’s value. There are only one hundred squares in Super Bowl squares, so when each player picks how many squares they want, the total value can only add to one hundred. When making your selection it should only show how many squares remain, basically it needs to subtract from 100 the total value of squares already entered. This is done in column P using an IF and ROW formula. If the total value of squares taken is less than one hundred, then show the row number, if not, show nothing.

I hope by examining this template you’ve learned a thing or two about Excel.

Horizontal to vertical formula across sheets

Typically, to transfer horizontal rows into vertical columns in Excel you would highlight the cells you want to change and copy, then right click on the cell you want to move to, select ‘paste special’, click ‘transpose’ box, and hit ok. But what if you want to accomplish this task with a formula instead so it is done automatically on the fly? In an earlier post I showed you how to do it by using the OFFSET function combined with a named range. Today, I’m going to show you a different Excel formula to transfer rows to columns.

I recently used these horizontal to vertical formulas in my 2013 NCAA college football bowl prediction pool manager, and I am going to refer to that template as an example, so if you haven’t already I recommend you download the sheet. I needed to get the list of the players from the main sheet, which were listed out horizontally, and get them into the leaderboard sheet. The players needed to be listed vertically in the leaderboard in order for my rank without ties formula to rank the players in order of who picked the most games correctly. The basic formula uses INDEX and ROWS functions and looks something like this:

=INDEX(Sheet2!D$22:H$22,ROWS(A$4:A4))

The INDEX function returns the value of the cell at the intersection of the rows and columns specified in the formula while ROWS returns the number of rows in a reference or array. The exact formula I used on the leaderboard sheet in cell A3 is shown below:

=IF((ROW()-2)<=$L$3,INDEX('Master Pool'!J$39:Z$39,ROWS(A$4:A4)),"")

The formula - notice the range

The range expands as the formula is filled down

It takes all the names in row 39 on the Master Pool sheet from column J to Z and puts them into a vertical column in the leaderboard sheet, starting in row 3. The dollar signs are very important. As you fill the formula down the range increases. I also used the IF and ROW functions to account for the number of players (if the row number minus two, because the formula started in row 3, is less than or equal to the total number of players, then transpose the data, otherwise leave blank). As you can see in the example spreadsheet, the data is transformed from a horizontal row on one sheet to a vertical column in another. This is important because the data in the horizontal column can change and the vertical column will update automatically - no manual revisions needed!

Top Excel Help Posts in 2013 and 2014 Goals

2013 is coming to a close so it’s that time of year to sit back and reflect about what transpired this past year and what is to come. I’m going to share my most popular Excel tips from the past year, my most popular Excel templates, and finally share what my goals and vision for next year is.

Top 5 Excel Tips from 2013

 

Listed below are the five most popular Excel tips I published on the Excel Help blog throughout 2013:

 

1. How to combine Excel files with a VBA macro
2. How to filter Data in Excel
3. How to create collapsible rows in Excel
4. How to embed Excel in a website
5. Excel pranks and practical jokes

 

Top 5 Excel Templates from 2013

 

Listed below are the top 5 most popular free Excel templates and spreadsheets I created and made available to download in 2013:

 

1. Printable Super Bowl Squares
2. Website Creation Checklist
3. Newborn Checklist for New Parents
4. Apartment Comparison Spreadsheet LITE version
5. NFL Helmet Schedule

 

Goals for 2014

I recently took a poll of my loyal followers by asking them what they would rather see more of on the blog: spreadsheet templates or tips/tricks/macros to improve spreadsheet creation efficiency? My most recent posts have primarily been spreadsheet templates I’ve made available to download for free, such as my newborn feeding schedule, college bowl prediction pool, etc. Something I’ve gotten away from lately is posting tips and macros to improve your Excel efficiency, like my earlier posts on how to create folders automatically, how to create hatching in Excel, etc.

The majority of my reader’s responses asked for more tips, tricks, and macros to improve Excel efficiency. I will still be creating and posting templates as I have been because I think a lot of people find them to be quite useful and you may pick up a few tips just by looking at them and examining the formulas I use. However, I promise to make a strong effort to post more tips and macros, especially for my email subscribers. In fact, I already have several rough drafts already written and am working on some new video tutorials. What would you like to see more of in 2014? Anything specific?

Have a great holiday season, thanks for your continued support, and see you in 2014!!!

How to Combine Excel Files

There have been countless times during my day job when I’ve had to combine multiple Excel files into one. I used to do it the old fashioned way of copy and paste but after doing this tedious and time consuming task I decided to write a VBA macro to help me out. I’ve now made the template available for you to use for free. This version of the combine Excel workbooks macro allows you to choose the directory of the Excel files to copy without having to change the code in the Visual Basic Editor. The steps to use the Combine Workbooks tool are as follows:

 

1. Place the Excel workbooks you want to combine into a single folder that contains no other files
2. Go to View>Macros
3. Select "Combine Workbooks" then click Run
4. Select the File where the spreadsheets you want to combine are located
5. Save the newly created file

Instructions are provided with the spreadsheet

Please note that this code will not work on protected sheets and it will automatically skip any blank worksheets in any of the workbooks saved in the folder. See how it works for yourself by watching my short demo video below:
 

 

Download the Combine Excel Files spreadsheet that contains the VBA code to copy all the worksheets from all the workbooks in a folder into the active workbook using this link:
 

Combine Files.xlsm download

Apartment Comparison Spreadsheet Update

I’ve revamped my Apartment Comparison Spreadsheet website and the big news is you can now download the Apartment Search Spreadsheet for free! Signup for the Apartment Search Tips newsletter and you’ll immediately receive the link to download my apartment hunting tool. You can unsubscribe from the email list at anytime but if you’re looking for an apartment I recommend you don’t unsubscribe so you can get my valuable tips, like how to potentially earn $100 for signing a new lease!

The Apartment Search Spreadsheet can  also be used as an apartment search checklist as I listed almost every criteria you could think of for what you would like in a new apartment. Enter the data for every apartment you are looking at. Next, you’ll set an importance factor for several categories. What’s more important to you - size of the rooms or distance to work? The spreadsheet uses your inputs to give each apartment a score and you can easily see which apartment has the highest score and is thus the best choice for you.

Please note, the free preview version of the spresdsheet for apartment comparison only allows you to compare two apartments. You'll have to purchase the PRO version to compare more than two apartments, but it also comes with a lot of extra resources you might enjoy. Check it out here. And please do let me know if you find this tool at all useful or if you think it would be great if there were something like this for another item, like to compare houses or cars.

How to Filter Data in Excel

Learning how to filter data in Excel will help you analyse data faster and become better at your job. Filtering in Excel enables you to display only the data that you want to see on your spreadsheet without deleting anything. It’s a really great way to search through large amounts of information and you know I’m all about Excel tips that help improve your speed and efficiency!

There are three types of filters in Excel: list of values, by format, or criteria and you can sort your spreadsheet by order, color or text. What’s the difference between sorting and filtering? Sorting will rearrange the order of your list while filtering keeps the order but actually hides data based on your filter criteria.

To add a Filter in Excel, you can first select a single cell within your range of data but I recommend you highlight all your data (please note you cannot add filters to empty cells). Next, go to the Home tab then the Editing section. Under Sort & Filter click Filter (or use the filter shortcut Crtl+Shift+L). Once filtering is turned on you will see little arrows along your top row of data. Select one of the arrows to set your filter options. If you hover your mouse over the drop down arrow you will see a pop-up message displaying what the value the filter is currently set to (example: equals “Test”).

 

To remove the filtering from your spreadsheet, simply click the Filter button again. If you want to reset the filter to the original values click on the Sort & Filter button and then click “Clear."

You can also turn auto-Filter on and off with a VBA macro:

Sub TurnAutoFilterOn()

'check for filter, turn on if none exists

If Not ActiveSheet.AutoFilterMode Then

ActiveSheet.Range("A1").AutoFilter

End If

End Sub

Turn off AutoFilter with VBA:

Sub TurnFilterOff()

Worksheets("Sheet1").AutoFilterMode = False

End Sub

Here’s a great video showing you exactly how to filter data in Excel:

Follow us on Google Plus for the latest updates when I will talk about dynamic filters and Kalman filters in Excel.

Excel Pranks and Practical Jokes with VBA

I’ve shared a lot of Excel tips about how to increase your productivity at work but today I thought I would post something a little more fun – how to decrease your productivity! I’m talking about ways to use Microsoft Excel spreadsheets to play pranks, practical jokes, April Fool’s Day kind of stuff on your friends, roommates, and coworkers. The intent is not to harm anyone or hurt their professional careers – this is simply about having some plain ole fun.

A great way to wreak havoc in the workplace is to create a macro that automatically runs when an Excel workbook is opened. You can do this by writing a VBA procedure in the Open event of the workbook by using the Visual Basic Editor. Create a new Excel spreadsheet then press Alt+F11 to launch the VBA Editor. Next, right-click the ThisWorkbook object, and then click View Code.

In the Object list above the Code window, select Workbook. This will automatically create an empty procedure for the Open event like this and you can now add your evil code.

To make Excel automatically close itself when the workbook is opened use this:

Private Sub Workbook_Open()

     Application.DisplayAlerts = False

     Application.Quit

End Sub

Here’s a trick that will automatically open Microsoft Word and close Excel:

Sub Workbook_Open()

‘make sure the Microsoft Word Object Library is selected by going to tools>references

Application.Visible = False

Dim wdApp as Word.Application

Set wdApp = New Word.Application

wdApp.Visible=True

Set wdApp = Nothing

Application.DisplayAlerts = False

Application.Quit

End Sub

This is one of my personal favorites; have a message box pop-up asking if the user wants to download the virus they requested. Whether they press the yes or no button the next message tells them the virus has begun downloading!

Private Sub Workbook_Open()

MsgBox "The virus you requested is now ready to download, Do you want to start downloading now?", vbYesNo, "Virus Trojan-x45fju"

MsgBox "The Virus is Now Downloading. You have made the biggest mistake of your life! ByE bYe", , "Begin Virus Download"

End Sub

This function flips the workbook and will make everything on the left now appear on the right side:

ActiveSheet.DisplayRightToLeft = True

To change all cell’s color to black:

Cells.Interior.Color = RGB(0,0,0)

Instead of automatically running a macro on opening a workbook (and making it obvious you did something) you could embed a macro that only runs on certain conditions. A funny prank is a macro to change the size of the Excel window every time the user clicks on a cell:

Private Sub Workbook_SheetSelectionChange(ByVal Sh As Object, ByVal Target As Range)

Application.WindowState = xlNormal

Application.Width = Int(Rnd() * 1000) - 100

End Sub

As you can imagine, the possibilities are nearly endless! Now you may think “All someone has to do is change or delete the code to fix the problem.” Well, you can protect your VBA code so only those with the password can modify it. Go to Tools>VBAProject Properties>Protection. Check the box to lock project for viewing and create a password (and remember it). Now you’re an evil genius!

Of course, if you’re not comfortable using VBA (which I recommend you get comfortable and learn it)  you can always use these old fashioned tricks:

1. Use find and replace on a document, like replacing “you” with “you idiots”.
2.  If your coworker has an old school mouse simply remove the ball when they're not around and then sit back and watch the fun when they try to figure out why their mouse isn't working anymore.
3. Take a screen capture of a roommate’s desktop and save it as a jpg or bmp file. Turn on the Active Desktop, and make sure to turn off "show desktop icons". Change the wallpaper to the screen capture image you just saved and watch as they click away on their "icons" that mysteriously stopped working.

Or, you can use a device like the Phantom Keystroker.

Have you ever used something like this on someone? What’s your best Excel prank?