Include MD5 or SHA-256 hashes to ensure the file hasn't been corrupted. 2. Forensics or Investigation Report
Since this is part1 , list how many total parts exist (e.g., "Part 1 of 5").
A "White Paper" style guide on how to utilize the data within the archive once all parts are joined.
A backup from a "live" server (as opposed to "dev" or "staging").
Mention it is a RAR archive , requiring software like WinRAR or 7-Zip to extract.