WinMend File Splitter is an application that lets you split all kinds of files into as many parts as you need. You can indicate the number of portions you want your file to be divided into or the size of each portion.
The process is fast, and in a matter of seconds you can split apart relatively large files. To merge them later you'll just need to install WinMend File Splitter onto the device where you want to save the original file and that's it. No complications.
Without a doubt this is a recommendable option for when you need to split apart large files.