There are many file splitters/compressors avaiable in the market such as winrar,7zip.But i stumbled upon an small but cool program that can split/join your files easily.Hj split is an freeware file splitter,with an very easy interface.All you need to do is to open up the file you want to split using the Hj split's split option and select the output folder and press the magic button.In a few seconds the file will be splitted into the desired size with an extension 001,002 and so on.TO join the files ,just select the join option and select the first file of the series and press join,if all the splitted files are in the same folder they will be joined automatically!The best part about the software is that it is absolutely free and works on multtiple platform!