With Filestar you get 0 different skills for working productively with KWAJ Compressed File (.ex_) files.
About .Ex_
Name
KWAJ Compressed File
Extension
.ex_
Format
Binary
Category
Compressed
Developer
Microsoft
Description
A single file compressed with a Microsoft compress utility that writes the KWAJ header (the SZDD format's sibling, used by some MS-DOS and Windows installers and converter disks); the original file name is usually carried in the header.