.ACF File Extension

.ACF File Extension

File Type 1

Steam Application Cache File

Developer Valve
Popularity
3.9  |  39 Votes
Category Game Files
Format Binary

What is an ACF file?

An ACF file is a cache file used by Valve Steam, a software package used for downloading games. It saves information related to the downloaded software and is used for the original download as well as game updates.

More Information

ACF files are used by newer versions of the Steam content delivery system. Older versions use .GCF and .NCF files.

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Programs that open ACF files

Windows
Mac
Updated June 3, 2016
File Type 2

X-Plane Aircraft File

Developer Laminar Research
Popularity
3.6  |  16 Votes
Category Data Files
Format Text

What is an ACF file?

Aircraft file used by X-Plane, a realistic flight simulator for pilots and simulator hobbyists; contains data that describes the properties of the aircraft, such as engine power, flight physics, mass properties, and limits.

More Information

You can create an ACF file using Plane-Maker, which is a utility that comes with X-Plane. However, Plane-Maker does not enable you to create a 3D model, it is only used to determine the layout of basic aerodynamic shapes and properties of the aircraft. You can use the AC3D application with the X-Plane plugin to create a 3D model in the X-Plane OBJ format.

NOTE: Before version 10 of X-Plane, the ACF file contained aircraft data in binary format. It now contains data in text format.

Programs that open or reference ACF files

Windows
Mac
Linux
Updated September 28, 2015
File Type 3

Adobe Photoshop Custom Filter File

Developer Adobe Systems
Popularity
3.0  |  11 Votes
Category Settings Files
Format Binary

What is an ACF file?

Convolution kernel file created by Adobe Photoshop, an image-editing program; contains a NxN kernel matrix of values used to manipulate the neighboring pixels surrounding a given pixel; can contain positive and negative values as well as mathematical expressions.

More Information

Convolution kernel matrixes can be used for blurring, sharpening, embossing, or performing other raster graphic operations to an image; once saved in an ACF file, they can be repeatedly applied to images.

Programs that open or reference ACF files

Windows
Mac
Updated February 14, 2014
File Type 4

Agent Character Data File

Developer Microsoft
Popularity
2.5  |  10 Votes
Category Data Files
Format N/A

What is an ACF file?

Data file that describes a character created for Microsoft Agent, an interactive animation program; contains character data that can be loaded over the HTTP (or Web) protocol; saved along with a corresponding .ACA file, which contains animation data for the character.

More Information

NOTE: Microsoft Agent has been discontinued with the release of Windows 7.

Programs that open or reference ACF files

Windows
Updated October 30, 2009

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