Understanding the For ... Next Structure

Written by Allen Wyatt (last updated June 8, 2024)
This tip applies to Excel 97, 2000, 2002, and 2003


Macros in Excel are written in a language called Visual Basic for Applications (VBA). Like any other programming language, VBA includes certain programming structures which are used to control how the program executes. One of these structures is the For ... Next structure. The most common use of this structure has the following syntax:

For X = 1 To 99
    program statements
Next X

You are not limited to using the X variable; you can use any numeric variable you desire. You are also not limited to the numbers 1 and 99 in the first line; you can use any numbers you desire, or you can use numeric variables. When a macro is executing, and this structure is encountered, Excel repeats every program statement between the For and Next keywords a certain number of times. In the syntax example, the statements would be executed 99 times (1 through 99). The first time through the structure, X would be equal to 1, the second time through it would be equal to 2, then 3, 4, 5, and so on, until it equaled 99 on the last iteration.

Normally, as Excel is working through the For ... Next structure, it increments the counter by one on each iteration. You can also add a Step modifier to the For ... Next structure, thereby changing the value by which the counter is incremented. For instance, consider the following example:

For X = 1 To 99 Step 5
    program statements
Next X

The first time through this example, X will be equal to 1, and the second time through, X is equal to 6 because it has been incremented by 5. Similarly, the third time through X is equal to 11. You can also use negative numbers for Step values, which allows you to count downwards. For instance, take a look at the following:

For X = 24 To 0 Step -3
    program statements
Next X

In this example, the first time through the structure X is equal to 24, the second time it is equal to 21, and the third time it is equal to 18.

Note:

If you would like to know how to use the macros described on this page (or on any other page on the ExcelTips sites), I've prepared a special page that includes helpful information. Click here to open that special page in a new browser tab.

ExcelTips is your source for cost-effective Microsoft Excel training. This tip (2024) applies to Microsoft Excel 97, 2000, 2002, and 2003.

Author Bio

Allen Wyatt

With more than 50 non-fiction books and numerous magazine articles to his credit, Allen Wyatt is an internationally recognized author. He is president of Sharon Parq Associates, a computer and publishing services company. ...

MORE FROM ALLEN

Getting Rid of Wizards and Templates

Templates and wizards are used rather extensively in Word to either process a document or define how that document is to ...

Discover More

Referencing the Last Six Items in a Formula

If you have a list of data in a column, you may want to determine an average of whatever the last few items are in the ...

Discover More

Easily Entering Dispersed Data

Need to enter information into a bunch of cells that aren't anywhere near each other in the worksheet? Here's a handy way ...

Discover More

Program Successfully in Excel! This guide will provide you with all the information you need to automate any task in Excel and save time and effort. Learn how to extend Excel's functionality with VBA to create solutions not possible with the standard features. Includes latest information for Excel 2024 and Microsoft 365. Check out Mastering Excel VBA Programming today!

More ExcelTips (menu)

Macro Fails after AutoFilter

When developing a macro that others may use, you might want to test it out to make sure it works properly if an ...

Discover More

Retrieving Drive Statistics

Need to gather some information about the drives on a system? It can be pretty easy to do using a macro, as shown in this ...

Discover More

Self-Deleting Macros

Macros are very powerful, but you may not want them to always be available to a user. Here are some ways you can limit ...

Discover More
Subscribe

FREE SERVICE: Get tips like this every week in ExcelTips, a free productivity newsletter. Enter your address and click "Subscribe."

View most recent newsletter.

Comments

If you would like to add an image to your comment (not an avatar, but an image to help in making the point of your comment), include the characters [{fig}] (all 7 characters, in the sequence shown) in your comment text. You’ll be prompted to upload your image when you submit the comment. Maximum image size is 6Mpixels. Images larger than 600px wide or 1000px tall will be reduced. Up to three images may be included in a comment. All images are subject to review. Commenting privileges may be curtailed if inappropriate images are posted.

What is three less than 4?

There are currently no comments for this tip. (Be the first to leave your comment—just use the simple form above!)


This Site

Got a version of Excel that uses the menu interface (Excel 97, Excel 2000, Excel 2002, or Excel 2003)? This site is for you! If you use a later version of Excel, visit our ExcelTips site focusing on the ribbon interface.

Newest Tips
Subscribe

FREE SERVICE: Get tips like this every week in ExcelTips, a free productivity newsletter. Enter your address and click "Subscribe."

(Your e-mail address is not shared with anyone, ever.)

View the most recent newsletter.