If a solid archive is corrupted, it is much harder to recover individual files compared to a non-solid archive (like a standard .zip ). How to Check the Solid Status
In the context of 7-Zip, a on an archive like ordersarchive.7z typically refers to examining its solid compression status. Solid compression treats multiple files as a single continuous data stream, significantly improving the compression ratio for similar files. Solid Archive Overview
You can generate a "report" on your archive's solid status using the or Command Line : Using 7-Zip GUI Open the 7-Zip File Manager . Right-click ordersarchive.7z and select Properties . Look for the Solid field: "+" or "Yes": The archive is solid. "-": The archive is not solid.