Mm_002.7z.004

: If you receive a CRC error, one of the volumes (possibly part 004) may have been downloaded incorrectly and needs to be re-acquired.

: The extension .004 indicates this is not a standalone file. It is the fourth segment of a larger archive that has been split into smaller pieces (volumes) for easier sharing or storage. mm_002.7z.004

: Ensure mm_002.7z.001 , mm_002.7z.002 , mm_002.7z.003 , and mm_002.7z.004 are in the same directory. : If you receive a CRC error, one

: To open or extract the contents, you must have all previous parts (e.g., .001 , .002 , .003 ) and any subsequent parts in the same folder. Format : It uses the 7-Zip (.7z) compression format. How to Extract : Ensure mm_002

12 May 2020 — 7zip file with numbers on it like 001 means that you only have a part file of the whole compressed file. Microsoft Learn How to Open and Extract .001 Files - Microsoft Q&A

: Ensure the filenames are identical except for the final three digits (e.g., do not change mm_002.7z.004 to something else).