12 May 2020 — 7zip file with numbers on it like 001 means that you only have a part file of the whole compressed file. Microsoft Learn How to Open and Extract .001 Files - Microsoft Q&A

Camp.7z.001 represents the first volume of a split archive created by 7-Zip, designed for high-ratio compression. To extract the full contents, all parts (e.g., .001, .002) must be present, with extraction initiated via 7-Zip or WinRAR on the first file. For more details, visit Microsoft Q&A . How to Extract .7z.001 files - Microsoft Q&A