What is CGM? What Opens a CGM? File Format List from WhatIs.com

File Extension

CGM File Format

Computer Graphic Metafile

CGM file format icon

CGM is a file extension for a computer graphics metafile file format commonly used in CAD (computer-aided design) and presentation graphics applications.

CGM is a vector graphics format that supports three different encoding methods: binary (best for program read speed), character-based (produces the smallest file size and allows for faster data transfers) or cleartext encoding (allows users to read and modify the file with a text editor)

CGM is an ANSI (American National Standards Institute) standard format that can be used on any operating system that supports it (unlike the WMF format which is designed only for Windows).

MIME type: image/cgm


Learn more about CGM files:

Visit the ANSI webpage

Ask about CGM files at IT Knowledge Exchange.

This was last updated in August 2010
Editorial Director Margaret Rouse

Ask a Question About CGMPowered by ITKnowledgeExchange.com

Get answers from your peers on your most technical challenges

Tech TalkComment

What made you want to look up CGM Computer Graphic Metafile? Please tell us where you read or heard it (including the quote, if possible).



    Contribute to the conversation

    All fields are required. Comments will appear at the bottom of the article.