With Filestar you get 0 different skills for working productively with SZDD Compressed File (.ex_) files.
About .Ex_
Name
SZDD Compressed File
Extension
.ex_
Format
Binary
Category
Compressed
Developer
Microsoft
Description
A single file compressed with Microsoft's MS-DOS COMPRESS utility (the SZDD format): installation floppies and downloaded archives ship their .exe/.dll/.txt files as .ex_/.dl_/._ copies, and the last letter of the original name is stored in the header.