Please Note: This article is written for users of the following Microsoft Word versions: 2007, 2010, 2013, 2016, 2019, and 2021. If you are using an earlier version (Word 2003 or earlier), this tip may not work for you. For a version of this tip written specifically for earlier versions of Word, click here: Determining the Size of a File.

Determining the Size of a File

Written by Allen Wyatt (last updated November 24, 2025)
This tip applies to Word 2007, 2010, 2013, 2016, 2019, and 2021

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 text 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.

Note:

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

WordTips is your source for cost-effective Microsoft Word training. (Microsoft Word is the most popular word processing software in the world.) This tip (13209) applies to Microsoft Word 2007, 2010, 2013, 2016, 2019, and 2021. You can find a version of this tip for the older menu interface of Word here: Determining the Size of a File.

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. Learn more about Allen...

MORE FROM ALLEN

Using Older Spelling and Grammar Checking

If you prefer the older spelling and grammar checking process used in Word, then you will find this tip helpful. It only ...

Discover More

Resetting Default Character Formatting

If you need to remove any explicit character formatting from some text, you'll want to commit the shortcut in this tip to ...

Discover More

Changing the GoTo Default

Want to get to a bookmark location quickly? One option is to use the F5 key to jump to a bookmark. Perhaps a quicker ...

Discover More

Create Custom Apps with VBA! Discover how to extend the capabilities of Office 365 applications with VBA programming. Written in clear terms and understandable language, the book includes systematic tutorials and contains both intermediate and advanced content for experienced VB developers. Designed to be comprehensive, the book addresses not just one Office application, but the entire Office suite. Check out Mastering VBA for Microsoft Office 365 today!

More WordTips (ribbon)

Editing Word's Built-in Commands

Want to configure Word to do just what you want it to? You can even go so far as to change the actual way in which Word ...

Discover More

Passing Parameters to Functions

Functions can be used to perform repetitive tasks and return values to your main program. You can also pass values to a ...

Discover More

Detecting the Beginning of a Sentence in a Macro

Macros can make life easier, as they provide a fast and efficient way of processing text in a document. Such is the case ...

Discover More

FREE SERVICE: Get tips like this every week in WordTips, 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.

Notify me about new comments ONLY FOR THIS TIP

Notify me about new comments ANYWHERE ON THIS SITE

Hide my email address

What is 7 + 7?

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 Word that uses the ribbon interface (Word 2007 or later)? This site is for you! If you use an earlier version of Word, visit our WordTips site focusing on the menu interface.