The software will automatically detect the other parts and join them back into the original full-sized file. Security Warning
: This indicates that the file is the first part of a multi-volume archive . Large files are often "split" into smaller chunks to make them easier to upload, download, or store on formatted media. PrettyButterflies.7z.001
Do you have the of this archive, or are you trying to verify the source where you found it? The software will automatically detect the other parts