: On its own, this file cannot be opened. It contains only a slice of the original data and requires the previous three parts to be usable.
: The .004 extension indicates this is the fourth piece of a larger set (e.g., TC.7z.001 , TC.7z.002 , TC.7z.003 , and TC.7z.004 ). TC.7z.004
To extract the contents, you must have of the archive in the same folder. How to Split and Join Files with 7zip | How to install 7zip : On its own, this file cannot be opened