If the extraction fails halfway through, one of the volumes might be damaged. Try re-downloading the specific part that caused the error.
The filename indicates that you are dealing with the second part of a split compressed archive created with 7-Zip . 1 (7)-7 & 1 (8)-8.7z.002
How to Extract Split Archives: Handling .7z.001 and .7z.002 Files If the extraction fails halfway through, one of
Before you try to open anything, ensure that of the archive are in the same folder. How to Extract Split Archives: Handling
You must have 1 (7)-7 & 1 (8)-8.7z.001 in the same directory as your .002 file.
You cannot open the .002 file by itself. It contains only a portion of the data and requires the other parts to function. 2. The Golden Rule: Keep Them Together
Since the file name itself appears to be a specific, possibly auto-generated title from a personal backup or a niche download, a blog post on this topic should focus on and how to successfully extract the data within.