Do you have the (like .001 and .002 ), or are you trying to identify where this specific file originated ?
: The date 15-09-2019 suggests the archive contains backups, logs, or photos from September 15, 2019. Security Warning 15-09-2019.7z.003
: Right-click the .001 file (the first part) and select "Extract." 7-Zip will automatically pull the data from .003 as it processes. Do you have the (like