CMAUTOSAVE file format description

Many people share .cmautosave files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .cmautosave file can be edited, converted or printed with. On this page, we try to provide assistance for handling .cmautosave files.

1 filename extension(s) found in our database.

.cmautosave - CET Designer Drawing Autosave

The CMAUTOSAVE data files are related to CET Designer. The CMAUTOSAVE file is a CET Designer Drawing Autosave. CET Designer is a complete design, specification and visualization tool, allowing you to complete every step of the proposal process in one program.

CET Designer
Data files
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CET Designer Drawing Autosave related extensions:
PCAnywhere Command Queue Data
IEInspector HTTP Analyzer Log
3Dize Cool Page Objects Counter Data
CET Designer Favorites Data
Conflict Minerals Reporting Template
CET Designer Paper View Papers Data

Naturally, other applications may also use the .cmautosave file extension. Even harmful programs can create .cmautosave files. Be especially cautious with .cmautosave files coming from an unknown source!

Can't open a .cmautosave file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

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