Many functions in Excel can make decisions. The most simple of these is the IF function: it returns a value depending on whether a condition you describe is true or false. Once you get the hang of using the IF function, you will find it easier to use Excel's many other decision-making functions.
When to use the IF function

Use the IF function when you want the value of a cell to depend on a condition. The condition is typically the value of another cell or of a value you input. If the condition you choose is a cell value, the cell can be on the same worksheet, a different worksheet, or even a different workbook.

Here's a simple example:
Let's say cell B3 displays a total sale amount. If that amount is greater than $100, you want cell B4 to show a discount rate of 10%. But if B3 is not over $100, you want the discount to be zero.

Here's the syntax of the IF function:
=IF (condition, value if true, value if false)

Note that in the function, there are three arguments. In Excel and many programming languages, the arguments a function gets are separated with commas.

So we write out the function as follows:
=IF(B3>100,10%,0)

Translating Excel into English, this means:
Evaluate the statement that B3>100. Is this true or false?
If it's true, the cell gets a value of 10%.
If it's false, the cell gets a value of 0.

This formula goes inside cell B4. So depending on whether B3 is under or over 100, B4 will adjust to either 0 or 10%.

Now let's put this…

This Experts Exchange video Micro Tutorial shows how to tell Microsoft Office that a word is NOT spelled correctly. Microsoft Office has a built-in, main dictionary that is shared by Office apps, including Excel, Outlook, PowerPoint, and Word. When an Office module, such as MS Word, gives us the red squiggly underline signifying a misspelled word, yet it really is spelled correctly (such as a proper noun), we're all familiar with how to add it to the custom dictionary, that is, simply right-click the word and select Add to Dictionary. But suppose we type in a word that does not get the red squiggly underline, that is, Word thinks it is spelled correctly, yet we do not like that spelling, and we want Word (and other Office apps) to flag it as a misspelling. This video explains a Microsoft supported technique for achieving that.

1. Locate the ExcludeDictionary file

Exit all Office apps.

Using Windows/File Explorer (or whatever file manager you prefer), navigate to this file:

c:\Users\<username>\AppData\Roaming\Microsoft\UProof\ExcludeDictionaryEN0409.lex

Of course, <username> is your user name (in my video, it is Joe). The exact name of the file will vary depending on your language and Office version, but it will begin with ExcludeDictionary and have a LEX file extension.

2. Open the ExcludeDictionary file

Using Notepad (or whatever plain text editor you prefer), open the ExcludeDictionary file, which will be empty the first time you open it. If you do a File>Open, make sure that All Files is selected, since it is a LEX…

This Experts Exchange lesson shows how to use VBA to loop through rows in Excel.  In order to sort, filter, and use database features, there needs to be a value in each column for every row. When data arrives with values missing, code to copy values where it is blank can be run.

This lesson shows the manual process to fill blanks, and the VBA code to implement it.

This is Part 2 in a 3-part series to discuss error handling in Excel.

Part 3 of this series will add errors to the code and then show how to fix them.  Part 1 of this Experts Exchange series suggested basic error handling code.

01. Set up the error handler

   At the top of the code for your procedure, the error handler is set up using     On Error GoTo Proc_Err

02. Dimension Variables

   Declare variable names and data types that will be used in this procedure.

03. Initialize Variables

   Initialize the values of variables that will be used in this procedure.

04. Calculate Variables

   Calculate the values of variables that be determined.

05. Give User a Chance to Back Out

   Issue a message box to the user and allow them to stop the process.

06. Determine the Last Row

   Determine the last row on the worksheet that needs to be written to.

07. Loop through each Row of Data and Save or Write Value

   Loop through each row and either save the value that is there, or write the last value saved if a value is needed.

08. Continue Looping until Done

   Continue looping until all values in the specified column are written.

09. Exit Code

   After the procedure code, a line label for the exit code (Proc_Exit: ) is used to signify what happens at the end of the procedure. This is code to gracefully exit.

10. Error Handling Code

…

In a previous video Micro Tutorial here at Experts Exchange, I explained how to get a free, one-month trial of Office 365, which provides the desktop versions of Office 2016. For Windows, this includes Access 2016, Excel 2016, OneNote 2016, Outlook 2016, PowerPoint 2016, Publisher 2016, and Word 2016, as well as Microsoft OneDrive. The previous tutorial ended at the point of downloading the installer for the Office 2016 desktop modules for Windows. This new tutorial goes through the installation process for those applications.

1. Run the downloaded installer

Using Windows/File Explorer (or whatever file manager you prefer), locate the downloaded installer for the Office 2016 apps that are included as part of the Office 365 Home subscription. The name may vary depending on your operating system, but it will look something like this:

Setup.<lots of other characters here>.exe

Run it (usually, via a double-click, but that depends on your file manager and settings) and then click the "Run" button on the "Security Warning" dialog.

2. Accept the User Account Control dialog

Depending on your User Account Control (UAC) settings, you may or may not get the UAC dialog. If you do, click the "Yes" button.

3. Wait until all Office 2016 apps are installed

Although it says, "We'll be done in just a moment", grab a cup of coffee.

4. Check for the Office Tools shortcuts

Check to make sure that the installer created a "Microsoft Office 2016 Tools" program group, with two shortcuts in it.

5. Check for the Office shortcuts

Check to make sure that the installer created shortcuts for all of the Office 2016 apps. It does not…

This Micro Tutorial will demonstrate how to create pivot charts out of a data set. I also added a drop-down menu which allows to choose from different categories in the data set and the chart will automatically update.

This Micro Tutorial will demonstrate how to use a scrolling table in Microsoft Excel using the INDEX function.

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This Micro Tutiorial will demonstrate how to build dynamic dashboards in Microsoft Excel..

This Micro Tutorial will demonstrate how to create an interactive dashboard in Microsoft Excel. The entire dashboard is controlled by a set of radio buttons. Every chart in the dashboard updates show the segment of data as you select a new option.