: The official 7-Zip is the standard tool for this format.
The file extension .003 (specifically part of a HAY.7z.001 , HAY.7z.002 , HAY.7z.003 sequence) indicates that you have the third part of a . HAY.7z.003
You will need software capable of handling split 7z archives. : The official 7-Zip is the standard tool for this format
: ZArchiver is a highly-rated mobile option for 7z files. 3. Extract from the First Volume etc.) in that same folder yet?
Do you have all the other ( .001 , .002 , etc.) in that same folder yet?