What Is the File Extension Ctm?
International standard files use a type of encoding that is agreed upon as the official way of sharing a certain type of file for international business. An example of this are files with the .ctm file extension, a term that refers to the last three letters that follow a period in a file name.
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Identification
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A file with the .ctm file extension is known as a CGMetafile.
Function
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Ctm files contain information about two-dimensional images, and they are encoded with a type of technology known as the Computer Graphics Metafile (CGM). The .ctm file extension serves as a marker to your computer, allowing the corresponding image file to locate the file when needed to display the image.
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History
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CGM was made the international encoding standard for two-dimensional images in 1987, according to the Advisory Group on Computer Graphics, meaning that the .ctm file is the preferred method for encoding data about images for purposes relating to international commerce.
Features
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The .ctm file contains information about a two-dimensional image, such as the color or geometric layout. Ctm files and CGM images are used by the U.S. military.
Programs
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Produced by the Rutherford Appleton Laboratory, RALCGM is a program used for creating and editing .ctm files as well as converting other images into CGM formats. RALCGM is available for Unix, Windows and MS-DOS-based machines.
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