Files with acf file extension can be found in Steam gaming software folders. These files are cache files for individual games bought and downloaded using Steam service.

There are 5 other file types using
the ACF file extension!

acf icon.acf - Adobe Photoshop custom filter

empty icon.acf - Microsoft Agent HTTP character data

empty icon.acf - DB/TextWorks file

empty icon.acf - X-Plane description data

empty icon.acf - Spectramap application colours file

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ACF file - Steam cache

What is acf file? How to open acf files?

File type specification:

Game file type icon Game file type

The acf file extension is also related to Steam gaming platform and used for one of its default file types.

The acf file is a cache file, generated for the purpose of a game downloaded using Steam networks. Probably used to speed up certain things. Typically found in the app folder of each game.

Updated: June 22, 2018

The default software associated to acf file type:

Steam icon

Valve Corporation logoSteam  Microsoft Windows software

Company or developer:
Valve Corporation

Steam is digital distribution and multiplayer platform. It is used to distribution of computer games, game updates and also has chat and in-game voices features.

Steam for Mac icon

Valve Corporation logoSteam for Mac  Apple macOS / Mac OS X software

Company or developer:
Valve Corporation

Steam for Mac is digital distribution and multiplayer platform used for distribution of computer games, game updates and also has chat and in-game voices features. On Steam distribute many game developers, such as Electronic Arts, Activision, Bethesda Softworks, id Software etc.

Steam for Linux icon

Valve Corporation logoSteam for Linux  Linux/Unix software

Company or developer:
Valve Corporation

Steam for Linux is digital distribution and multiplayer platform used for distribution of computer games, game updates and also has chat and in-game voices features.

Help how to open:

Probably not meant to be accessed by the user.

How to convert:

Probably cannot be converted to anything else.

List of recommended software applications associated to the .acf file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open acf file, edit acf file, convert acf file, view acf file, play acf file etc. (if exist software for corresponding action in File-Extensions.org's database).

  • Others acf file

Unspecified and all other actions for computer programs working with acf file - Steam cache

Click on the software link(s) for more information. Suggested software applications use acf file type for internal purposes and/or also by different way than common edit or open acf file actions.

Microsoft Windows:

Apple macOS / Mac OS X:

Linux/Unix:

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