A file name should tell you what is inside without you having to open it. If SS-Isa-020 represents a specific system specification, that code should be documented in a master project list. Conclusion
This ensures that documents are sorted numerically, preventing "file version creep" where multiple "Final" versions exist simultaneously. SS-Isa-020_v.7z.001
Use "020" instead of "20" to ensure your computer sorts "100" after "020" rather than before it. A file name should tell you what is