Standard macOS utilities cannot handle split ZIPs; instead, use tools like The Unarchiver or Keka .
7-Zip is the most highly recommended tool for this format. You can right-click the .001 file, select "7-Zip," and choose "Extract Files". kdmvarset.zip.001
You will need a third-party utility designed to "rejoin" these segments. Standard macOS utilities cannot handle split ZIPs; instead,
This error typically means one of the numbered parts is missing from the folder or the download was interrupted. kdmvarset.zip.001