SGM file extension is for Standard Generalized Markup Language SGML document
Similar to SGM
A3L - Authorware Version 3.x Library
A41 - Authorware Version 4.x Library
A4L - Authorware Version 4.x Library
A4P - Authorware File Without Runtime
A5W - Unpackaged Authorware Windows File
A60 - Roland Garros Tennis MVTS File
A64 - Artist 64 file
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