.CGM File Extension
Computer Graphics Metafile
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What is a CGM file?
A CGM file is an image saved in a vector graphics format designed to support the needs of many graphics applications. It was originally used for clip art libraries, but newer revisions (based on the ISO/IEC 8632 standard) are now commonly used for CAD drawings.
More Information
CGM files are encoded using one of three different methods:
- Binary encoding - Standard file encoding that enables software programs to read the file quickly and efficiently.
- Character-based encoding - Produces the smallest possible file size, which saves disk space and allows for faster data transfers.
- Clear-text encoding - Allows users to read and understand the contents of the file and modify the file using a basic text editor.
Programs that open CGM files
Windows
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Free
Mac