It uses the 7-Zip LZMA/LZMA2 algorithm, which often results in significantly smaller file sizes compared to standard ZIP files.
A 7z archive can bundle thousands of files, preserving directory structures and metadata. 2898.7z
System administrators might use it for automated backups, where "2898" could represent a timestamp, a database entry ID, or a specific server node. It uses the 7-Zip LZMA/LZMA2 algorithm, which often