It's easy to use and has many features that other file splitters would envy. Select the file and the destination for the pieces. A slider bar enables you to select the number of pieces, clearly indicating the size of each piece. Additional features allow you to upload pieces to FTP servers, send them out as email attachments, or write pieces directly to floppy disk, and split large text documents. As an added bonus, File Split Magic includes a simple download manager that accepts URLs that you've copied to the Clipboard.
Excellent documentation is included.