Understanding the If ... End If Structure

by Allen Wyatt (last updated September 10, 2015)

Please Note: This article is written for users of the following Microsoft Excel versions: 97, 2000, 2002, and 2003. If you are using a later version (Excel 2007 or later), this tip may not work for you. For a version of this tip written specifically for later versions of Excel, click here: Understanding the If ... End If Structure.

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 If ... End If structure. The most common use of this structure has the following syntax:

If condition Then
    program statements
Else
    program statements
End If

When a macro is executing, and this structure is encountered, Excel tests whatever condition you have defined. If the condition is true, then the program statements right after the Then keyword are executed. If they are not true, then the statements after the Else keyword are executed. The Else keyword and any following program statements (which together make up an Else clause) are optional; you do not need to include them in your macro.

Regardless of whether the program statements in the If ... End If structure are executed, when Excel is done with the structure, the macro continues running with the statement following the End If keyword.

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