What is a CMX file?
The .CMX file format is primarily a Corel Metafile Exchange image, frequently referred to as a Corel Presentation Exchange Image. Corel Corporation developed this format to store and share vector graphics. Graphic designers create these files in CorelDRAW to distribute illustrations, logos, and clip art. Most .CMX files use a RIFF-based structure, but some use binary data. In rare cases, a .CMX file acts as an XML-based CAD measurement data file for Causeway CADMeasure software. Because multiple applications use this extension, viewer.online/cmx analyzes .CMX files to identify their exact format and creator software, shows which programs can open the file, and usually previews it.
How to open CMX files?
You can open standard .CMX images natively using CorelDRAW and Corel PaintShop Pro. Other major vector graphics tools like Adobe Illustrator can also import them. If you prefer free or open-source software, Inkscape handles .CMX files through the UniConvertor library. If you have a CAD measurement .CMX file, you need the Causeway software suite to read the XML data properly.
Best practices and file conversion
Always back up your original .CMX files. When you share vector graphics with users who do not own professional graphic design software, you should convert the file. We recommend converting .CMX files to standard web and print formats like .SVG, .PNG, or .PDF. You can securely perform this conversion at convert.guru.
Summary
viewer.online/cmx directly opens and previews .CMX files in the browser, eliminating the need to install software or troubleshoot compatibility issues.