How To Compress 1GB File Into 1 MB

Step 1) First of all you need to download a software to compress files that is KGB Archiver.
            For Download Click Here

Step 2) So now install it in your computer.

Step 3) Choose an option to compress files and then click next.

Step 4) Select 'archive type ' keep it as KGB and then maximum compression level.

Step 5)Then you have to select the files or file to compress.

NOTE: But there is one drawback of this .if you select maximum it will take more time to compress file just cause it compress file very slowly and with high compression rate.