The 7z format is an open-source, high-compression archive type developed by Igor Pavlov. Splitting a large archive into smaller pieces like ".001" is a common practice for:
: Industrial platforms (e.g., IBM Guardium or Oracle) use automated "Data Archive" processes to split and store historical logs. FlowJas.7z.001
: Breaking a large file into segments that fit on smaller storage devices (like USB sticks) or bypass email attachment limits. The 7z format is an open-source, high-compression archive