Editor: File Splitter is a freeware program which does not require installation and can be used to Split Files to multiple chunks as well as to merge multiple chunks into a single file.
First of all, choose a file to split. It can be any file of any size. Then, choose a destination folder. File Splitter will save all chunks to that folder. For example, if your source file was mybigfile.exe, the program will create files named mybigfile.exe.chunk001, mybigfile.exe.chunk002, mybigfile.exe.chunk003 and so on.