20100713cvs_backup.tar.7z Online
If you can share more context about where this file came from, I can provide a more specific review of its likely contents and importance.
Files with this naming convention often appear in legacy software archival, developer backups, or sometimes in data leaks. 20100713cvs_backup.tar.7z
This is almost certainly a backup of software source code or digital assets from 2010 or earlier. If you can share more context about where
.tar.7z indicates a tar archive ( .tar ) compressed with 7-Zip ( .7z ), which suggests a high level of compression on a potentially large dataset. 20100713cvs_backup.tar.7z