Use apps like Rar Lab to select the .001 file for extraction. Why Files Are Split
If a file transfer fails, you only need to redownload the specific, small numbered part, not the entire, massive archive. To help you with this, could you tell me: Are you getting a specific error message ?
The software will automatically read the subsequent parts ( .002 , .003 , ..., .005 ) to reconstruct the original file. Troubleshooting
Because of solid compression, all parts (001, 002, 003, 004, 005) must be present in the same folder. If you are missing one, or if one is corrupt, the entire archive cannot be extracted.
Here is a long-form explanation of how to handle and work with this file. Understanding the Split Archive Structure
To extract v1.7z.005 , you must have the full sequence. The best practice is:
The .7z format uses "solid" compression, meaning all files within the archive are treated as one large data block.