A file with the extension (e.g., Q3ENAGATSM5QFXXB.7z.001 ) indicates that it is the first part of a split archive. To successfully open or extract its content, you generally need all subsequent parts (e.g., .002 , .003 ) in the same folder. How to Extract .7z.001 Files How to extract part files 001 using 7zip on windows (2026)