Tc.7z.001 -

: This is the first segment of a "split" archive. Large files are often broken into smaller chunks (e.g., .001 , .002 , .003 ) to make them easier to transfer or store.

7zip file with numbers on it like 001 means that you only have a part file of the whole compressed file. Microsoft Learn WinZip Opens & Extracts 7Z Compressed Archive Files TC.7z.001

: Modern versions of Total Commander (e.g., TC 11.50) include internal 7-Zip unpacking capabilities using files like tc7z.dll or tc7z64.dll . : This is the first segment of a "split" archive