LanguageMASS
MASS-11 text document file
File type: Document file
Files with mass extension are associated with an old text format used by MASS-11.
What is mass file?
File type category:
Document file
Date updated: November 7, 2017
The mass file extension was used for a very old text format created by MASS-11 program. These documents were not in a plain text format, but in a binary form. MASS-11 was provided by Microsystems.