.SUIT File Extension
File TypeMacintosh Font Suitcase
File format categories include Binary, Text, XML, and Zip. The format of this file type has not been determined.
What is a SUIT file?
Font format used primarily by Mac OS Classic (Mac OS 9.2.2 and earlier); contains a single TrueType font or collection of fonts; should be stored in the System Folder/Fonts folder.
SUIT files can be accessed by any program that uses system fonts.