We have found one software suitable in our database for this conversion.
CGM graphics files are commonly supported in graphics editors and these can usually save them to other formats including TIFF. You can also find special programs like SDI Convert, that are specially designed for working, editing or conversion of .cga images. You may also want to check cgm to tif conversion for more options.
Updated: December 2, 2021
CGM
Files with cgm extension can be typically found as graphics files in Computer Graphics Metafile format. It is used for 2D vector graphics, raster graphics, and text, and is defined by ISO/IEC 8632. All graphical elements can be specified in a textual source file that can be compiled into a binary file or one of two text representations.
TIFF
Files with tiff extension are bitmap images in the Tagged Image File Format. Usually having the extension TIF, it's one of the more common graphics file types.