Files with ac$ extension are in most cases temporary files generated by Autodesk AutoCAD program. 

Detailed description

Software that open ac$ file

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AC$ file extension - AutoCAD undo info data

What is ac$ file? How to open ac$ files?

File type specification:

3d graphics, CAD-CAM-CAE file type icon 3d graphics, CAD-CAM-CAE file type

ac$ file icon: ac$ filetype icon

The ac$ file extension is given to AutoCAD temporary files that are used to store data when RAM is filled.

They should be deleted when AutoCAD closes, if it closes without crashing. If AutoCAD isn t running, these files can be deleted.

The default software associated to open ac$ file:

AutoCAD icon

Autodesk, Inc. logoAutoCAD  Microsoft Windows software

Company or developer:
Autodesk, Inc.

A CAD designing software with the powerful, flexible features. It is a CAD development platform that provides tools to build custom AutoCAD-based software products for specific markets. The default file formats using by AutoCAD are: DWG and DXF.

AutoCAD for Mac icon

Autodesk, Inc. logoAutoCAD for Mac  Apple macOS / Mac OS X software

Company or developer:
Autodesk, Inc.

AutoCAD for Mac software—it’s AutoCAD, for the Mac, bringing robust 3D free-form design tools and powerful drafting capabilities to your platform of choice. It takes full advantage of the macOS platform, with an intuitive, graphical user interface that makes it easy to bring your ideas to life.

Help how to open:

The ac$ files are used for internal purposes of AutoCAD.

How to convert:

As far as we know, this .ac$ 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.

Find conversions from ac$ file:

ac$ to dwg

List of software applications associated to the .ac$ 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 ac$ file, edit ac$ file, convert ac$ file, view ac$ file, play ac$ file etc. (if exist software for corresponding action in's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting ac$ files.

Programs that can create ac$ file - AutoCAD undo info data

Programs supporting the exension ac$ on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about listed programs for create ac$ file action.

Microsoft Windows:

Main software associated with ac$ file by default:
AutoCAD small icon AutoCAD
Other suggested software:
AutoCAD AutoSpool

Apple macOS / Mac OS X:

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