A daily updated filename extension database!

GAC file extension

The table below provides useful information about the .gac file extension. It answers questions such as:

  • What is the .gac file?
  • What program do I need to open a .gac file?
  • How can the .gac file be opened, edited or printed?
  • How can I convert .gac files to another format?

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ Microsoft Office Groove 2007 Data

GAC file is a Microsoft Office Groove 2007 Data. Microsoft Office Groove is a collaboration software program. It is included with the Enterprise and Ultimate editions of Microsoft Office 2007 and can be obtained as a standalone application.
GAC format description not yet available
Category: Data files
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
GAC aliases:
GAC related links:
GAC related extensions:
Microsoft Office Groove 2007 Archive

Microsoft Office Groove 2007 Archived Workspace

Other types of files may also use the .gac file extension.

🚫 The .gac file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

vac, ac, rac, hac, gwc, gc, gas, gad, fac, agc, tac, nac, gxc, gca, gax

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

GNU Autoconf Input File
General CADD Pro Component
Grab-a-Site Data File
GeoDict Analytic Data
ActiCalc Data
CaseWare Working Papers Client File
Helma Actions Script
Age of Empires II: The Conquerors Expansion v1.0 Saved Game
Intergado Data File
Vocaloid Accessory File

🔴 Can't open a .gac file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .gac file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .gac file extension, write to us!

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