If you need to split files in a hurry, Cryogenic FileSplitter is a speedy file splitter with an easy to use drag-and-drop interface.
Cryogenic FileSplitter splits and reassembled your files with drag and drop ease. You can specify the number of sections the file will be split into, segment size is displayed in real time so you can see when you've split enough to get below upload restrictions or other file size caps.
Cryogenic FileSplitter is a portable application and requires no installation or system changes. Cryogenic FileSplitter is freeware, Windows only. Have a favourite portable utility to share? Let's hear about it in the comments.