Tc.7z.001 Now

: You must have all subsequent parts (e.g., .002 , .003 ) in the same folder as the .001 file.

Total Commander (TC) does not always support split 7z archives natively "out of the box" for both packing and unpacking. You generally handle these files in two ways: TC.7z.001

: If TC fails, you can use the standalone 7-Zip utility or Unzip One to recombine and extract the files. Common Issues How to Extract .7z.001 files - Microsoft Q&A : You must have all subsequent parts (e