Ozd2p1.7z.001

(The starting segment containing the archive header) OZD2P1.7z.002 (The second segment) OZD2P1.7z.003 , and so on 7z & Multi-volume archives - Hexacorn

When a large dataset is compressed into the 7z format , the creator can choose to "split to volumes". This results in a series of files numbered sequentially: OZD2P1.7z.001

The file is the first volume of a multi-part compressed archive created with 7-Zip . This specific naming convention indicates that a large file or folder was split into smaller segments to make it easier to upload, download, or store on limited-capacity media. Understanding Multi-Part 7z Files (The starting segment containing the archive header) OZD2P1