The filename refers to the first part of a split 7-Zip archive .

: The .7z portion confirms it was created using 7-Zip , a high-compression file archiver.

: This naming convention is common for large software installers, high-definition video collections, or "repacks" of video games (often found on forums or file-sharing sites). How to use it

: The software will automatically detect the other parts and reconstruct the original file (e.g., an .iso , .exe , or .mp4 ) during the extraction process. Warning on Security