.AC$ File Extension

AutoCAD Temporary File

Developer Autodesk
2.7  |  9 Votes

What is an AC$ file?

Temporary file generated by AutoCAD, a 2D/3D drawing and design program; contains information used by various commands, including "UNDO" and "HIDDEN LINES."

More Information

AC$ files do not contain any drawing data and only exist when AutoCAD is open. They are automatically deleted when the program is closed.

Open over 400 file formats with File Viewer Plus.Free Download

Programs that open or reference AC$ files


Verified by FileInfo.com

The FileInfo.com team has independently researched the AutoCAD Temporary file format and Windows apps listed on this page. Our goal is 100% accuracy and we only publish information about file types that we have verified.

If you would like to suggest any additions or updates to this page, please let us know.