: Ensure tango.7z.001 , tango.7z.002 , and so on are located in the same folder.
A review of the "usability" of this file depends on having the full set. To extract it: tango.7z.002
: All parts must have the exact same base name (e.g., they must all be named "tango"). : Ensure tango
: If you only have .002 , the file is useless. You will receive an "unexpected end of archive" or "missing volume" error. : Ensure tango.7z.001