Fazftamutplk.7z.001

This usually means one or more numbered parts are missing from the folder, or the download was interrupted and a part is corrupted.

Ensure you are opening the .001 file. If you try to open .002 or subsequent parts directly, most programs will return an error because the archive's "header" is only in the first part.

To extract the contents, you must have numbered parts of the archive in the same folder.

Use an extraction tool like 7-Zip, WinRAR , or PeaZip to open the .001 file specifically.