Rus-6.7z.002
If you only have RUS-6.7z.002 (the middle piece), you cannot read the map. It looks like nonsense. You must have all parts ( .001 , .002 , .003 ) in the same folder. When you use a program like 7-Zip to "Extract" the .001 file, it automatically grabs .002 to rebuild the original map.
This file is useless on its own. Keep it together with RUS-6.7z.001 and any other consecutive parts to extract the data successfully. To make sure you can use this file, could you tell me: RUS-6.7z.002
The map is too large to fit in any single envelope. If he tries to jam the whole thing in, it will tear (file corruption). If you only have RUS-6
Imagine a spy, Agent Ivan, who needs to deliver a massive, top-secret map of a new, sprawling, 6-kilometer-long urban development (RUS-6). When you use a program like 7-Zip to "Extract" the
Ivan uses a tool to cut the map into three precise pieces. RUS-6.7z.001 (The top) RUS-6.7z.002 (The middle) RUS-6.7z.003 (The bottom)
He puts them in three separate envelopes and mails them on different days.
Once I know, I can tell you exactly which tool to use or how to fix the extraction.