To open these files, you need an extraction tool that supports multi-part RAR archives. The industry standard.
How to Download and Install GTA via Techs4Best: A Guide to Multi-Part RAR Files download-grand-theft-auto-techs4best-part077-rar
Most parts (except the very last one) should be the exact same size. If part077.rar is significantly smaller than the others (and it's not the final part), the download may be corrupted. 2. Prepare Your Software To open these files, you need an extraction
Right-click the setup file and select "Run as Administrator" to ensure the game has permission to write files to your Program Files. Troubleshooting Common Errors "Checksum Error" or "CRC Failed" If part077
Make sure all parts are saved in the same folder on your PC.
You will see files named similarly, such as part001.rar through part080.rar .
The file appears to be a specific segment of a highly compressed, split-archive download for a Grand Theft Auto game (likely GTA V or a heavily modded version of GTA IV) hosted by the site Techs4Best .