If you can tell me or what type of project it relates to, I may be able to provide more context.
Often indicates a "small" version, "sample", or "short" version. SS-JulSS-010_s.7z
Likely indicates the project or topic (e.g., Screenshot, Sample, Subject, Secret). Jul: Indicates the month of July. If you can tell me or what type
This indicates the file is compressed using the 7-Zip archiving tool. To find out what is in this file: SS-JulSS-010_s.7z