Determining the Size of a File

Summary: When processing a document using a macro, you may need to know the precise size of a particular file. The way you figure this out is to use the FileLen function, described in this tip. (This tip works with Microsoft Word 97, Word 2000, Word 2002, Word 2003, and Word 2007.)

One of the nice things about writing macros is that you have the ability to do just about anything you can do using the regular Basic language. For instance, you may want to open and process some file within a macro. Before doing so, you might want to know how large that file is. You can figure this out using the FileLen function in VBA. It returns the length of a specific file, in bytes. You don't even have to open the file first; just provide a file name, and FileLen does the rest. The following is an example:

lFLen = FileLen("TargetFile.txt")

This code determines the length of the TargetFile.txt file, and assigns that value to lFLen. The value returned is a long integer.

Tip #820 applies to Microsoft Word versions: 97 | 2000 | 2002 | 2003 | 2007

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Determining the Size of a File