From Ken's site:
Quote
The ".grp" file format is just a collection of a lot of files stored into 1 big one. I tried to make the format as simple as possible: The first 12 bytes contains my name, "KenSilverman". The next 4 bytes is the number of files that were compacted into the group file. Then for each file, there is a 16 byte structure, where the first 12 bytes are the filename, and the last 4 bytes are the file's size. The rest of the group file is just the raw data packed one after the other in the same order as the list of files.
Source code for KGROUP/KEXTRACT attached.
UTIL.ZIP (55.64K)
Number of downloads: 148