The .7z.003 file extension indicates that the file is the .
Even if you follow the steps, you may hit a wall. Here are the specific errors related to .003 files. Grand Theft Auto V.7z.003
The archive is incomplete and cannot be extracted. Grand Theft Auto V.7z.003
Downloading large PC games often means dealing with split archive files. If you are downloading Grand Theft Auto V (GTA V) and encounter a file named Grand Theft Auto V.7z.003 , you are dealing with a specific segment of a compressed multi-part archive. Grand Theft Auto V.7z.003
If 7-Zip stops halfway through and asks for the next volume, it cannot find the next sequential file.
Are you getting a specific (like "Checksum error" or "Unexpected end of data")?