Home : File Types : AC File

.AC File Extension

2 file types use the .ac file extension.

File Type 1Autoconf Script

4.1 (90 Votes)
CategoryExecutable Files

What is an AC file?

Automatic configuration script produced by GNU Autoconf; automatically configures software source code packages to adapt to several types of Posix-like systems; created by testing a software package for each feature the program might need in order to run a specific system; Autoconf then builds a list of system features that the package requires.

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Autoconf scripts are typically named "configure.ac." The automatic configuration script is created by running the preprocessor program m4 with the configure.ac file as input.

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Programs that open AC files
Updated 4/5/2007

File Type 2AC3D 3D Definition File

2.3 (6 Votes)
CategoryGame Files

.AC File Association 2

An AC file contains information about the appearance of a a 3D model in AC3D format. It stores various appearance information, such as meshes, texture paths, UV-mappings, and material definitions. AC files are typically created by AC3D, an application used to create 3D models for games, flight simulation, and virtual reality.

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While AC3D is a popular program foo creating AC files, the files are most commonly used by the X-Plane and FlightGear simulators. AC files can even be used to create X-Plane .OBJ files in AC3D and using the X-Plane plugin to export to the X-Plane OBJ format.

Since AC files are saved in plain text, you can open and modify them using a text editor. To open an AC file with a text editor, you may need to change the .ac file extension to .txt. After viewing or saving changes to the file, change the file extension back to .ac.

NOTE: AC files used by FlightGear are often accompanied by an .XML file, which contains information that animates the object or scenery in the game.

Programs that open AC files
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Updated 2/6/2019

About AC Files

Our goal is to help you understand what a file with a *.ac suffix is and how to open it.

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