The File Extensions Database

.GCF File Extension

  • Developer by: Valve
  • Category: Game Files
  • Format: Binary

What is an .GCF file?

.GCF is Game Cache File

Cache file used by Valve's Steam game distribution software; contains a virtual file system that may include file fragments, metadata, checksums and other game information; used for storing downloaded games and game updates from the Valve distribution service.

GCF was initially short for "Grid Cache File," but now stands for "Game Cache File." It is the format used for storing official Steam-integrated games and for downloading official content. GCF files are not meant to be manually altered by the user.

NOTE: Valve released the Mac version of Steam in May 2010.

Programs that open Game Cache File
Valve Steam
Valve Steam

How to solve problems with GCF files

  • Associate the GCF file extension with the correct application. On :
    Windows: Right click on any GCF file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.GCF files". Mac: Right click (or Ctrl-click) the GCF file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .GCF is Game Cache File. Because only the current version supports the latest GCF file format. Search, therefore, e.g. on the Valve manufacturer website after an available .GCF is Game Cache File update.
  • To make sure that your GCF file is not corrupted or virus-infected, get the file again and scan it with antivirus software.