The .7z extension indicates it is a 7-Zip compressed archive, known for high compression ratios. The .008 suffix signifies that this is the eighth part of a multi-volume split archive.
Use a program like 7-Zip or WinZip . Right-clicking on the first part (.001) and choosing "Extract" will automatically join all subsequent parts to reveal the original file. Do you have the other parts of this archive, or Does 7z compress better than zip? - Microsoft Community Hub 5t3f4nFr03l1ch.7z.008
The identifier refers to a specific split archive segment of a larger compressed file, likely created using the 7-Zip utility . .001 through at least .008).
You need every segment from the set (e.g., .001 through at least .008). 5t3f4nFr03l1ch.7z.008