If you can provide the where you found this or the estimated total size of the archive, I can help you identify exactly what's inside or how to fix extraction errors.

The "SS-Mil" prefix is often used in archival circles to categorize Military-related datasets, potentially including technical manuals, specifications, or historical documents. The "_s" suffix frequently denotes a "small" or "supplemental" version of a larger parent dataset. Usage and Extraction

The file is a specific part of a split compressed archive, typically associated with technical data or leaked documentation sets found in specialized online repositories. Technical Profile

Ensure you have SS-Mil-001_s.7z.001 and any subsequent parts.