Files with ACF 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 file

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. An *.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. 

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.

Help how to open:

This file type is not meant to be opened directly, there is no software that could open and work with it directly, or there is no information available in public sources about opening this file type. This is usually the case of some internal data files, caches, temporary files etc.

How to convert:

As far as we know, this .acf file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.

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's database).

  • Others acf file

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

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:

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