Split Big Files using WINRAR

First Open WINRAR.

Then right click on the file u wanna select and select Add to Archive then a window will open from Rar..... 

At the bottom there is a Tab saying "Spilt to Volume, Bytes" 

In the box enter a figure... Remember bytes ... For e.g. if u enters 10000000 that will be equal to 9.53 MB ... 

Remember u has to enter the value in bytes... So enter a big value.. 

And that’s it Your File will be split into your requires no of file...