1 (7)-7 & 1 (8)-8.7z.001 -

If you try to open a standalone .001 file and see an "Unexpected end of data" error, it almost always means . The software expects to find Part 2 to continue the extraction, and when it can't find it, it assumes the file is corrupted. How to Open and Extract Your Files

Demystifying Split Archives: A Guide to Opening .7z.001 Files 1 (7)-7 & 1 (8)-8.7z.001

To get the actual content out of these parts, you need a specialized file archiver. 1. Download the Right Tool If you try to open a standalone