The file is a split-archive part of a compressed 7-Zip file. The ".001" suffix indicates it is the first volume of a multi-part set. To access the data inside, you typically need all subsequent parts (e.g., FlowJas.7z.002, FlowJas.7z.003) saved in the same location. Understanding the 7z.001 Format
: Breaking a large file into segments that fit on smaller storage devices (like USB sticks) or bypass email attachment limits. FlowJas.7z.001
While the filename is specific, "Flow" terminology often appears in specialized scientific and data management contexts: The file is a split-archive part of a compressed 7-Zip file