StuffIt Deluxe packages your files and sends them where you want them as easily as drag-and-drop.
Utility to split and join files using several common cross-platform formats (Mac, Unix, Windows), such as hjsplit, hacha, fastsplit or winsplit.
Best Mac archiving tool to preview, compress and decompress Zip, 7z, Rar files
Extract given page ranges as well as merge various PDF documents.
Little Disc+ is a Mac application that handles file archives.