CMX file: How can I open a .CMX file?
The table below provides useful information about the .cmx file extension. It answers questions such as:
- What is the .cmx file?
- What program do I need to open a .cmx file?
- How can the .cmx file be opened, edited or printed?
- How can I convert .cmx files to another format?
We hope you find this page helpful and a valuable resource.
✅ Qualcomm Compact Media Extensions

The CMX file is a Qualcomm Compact Media Extensions.
✅ Corel Presentations Exchange Document

The CMX file is a Corel Presentations Exchange document. Corel Presentations is a presentation-graphics program akin to Microsoft PowerPoint and OpenOffice.org's Impress. It is available only as part of the Corel WordPerfect Office productivity suite.
✅ The Sims 3D Body Mesh

The SKN file is a The Sims 3D Body Mesh. The Sims is a 2000 strategic life-simulation video game developed by Maxis and published by Electronic Arts.
⚠ Be careful with .cmx files.
It's important to know that the .cmx file extension can be used by various programs, not just the ones you expect. This includes potentially harmful software or malware that might create .cmx files. Be cautious when dealing with .cmx files from unknown sources.
🔄 .cmx converters
The following softwares are capable of converting .cmx files to other formats:
For example, using the softwares above, a .cmx file can be converted into one of the following formats:
🚫 The .cmx file extension is often given incorrectly!
According to the searches on our site, these misspellings were the most common in the past year:
Is it possible that the filename extension is misspelled?
We found the following similar file extensions in our database:
🔴 Can't open a .cmx 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:
Select an app to open this .cmx file
It means that the operating system does not have a default app associated with the .cmx file type. To resolve this issue and open the file, you can take the following steps:
- Right-click on the .cmx file. A context menu will appear.
- From the context menu, select Open with. Windows will display a list of recommended apps.
- If the desired app is listed, select it from the provided options.
- If you cannot find the appropriate app, you may need to install software that supports the specific file type.
If you don't know how to change the default app for the .cmx file, check the FAQ.
🔴 Can I change the extension of files?
Changing the filename extension of a file is not a good idea. The extension of a file serves as a hint to the operating system and various software programs about the type of data contained within the file. When you alter a file's extension, you essentially modify how software applications interpret and handle that file. Every file has a specific format, also known as its file type or file format. The problem is, changing the file extension does not change the file format.
If you have helpful information about the .cmx file extension, write to us.