Go to the site www.downlaod.com and type in winrar in the search tab. Download the first search result and install successfully. Winrar helps you compress a large file into a smaller one, single or in parts. Right click on the file to be compressed and click on ‚ÄòAdd to archive‚Ä¶‚Äô, a window pops up. In this window, in the left-bottom corner you get an option to compress the folder into a single file or into several files with the file size of your choice. Now it is easier to send the part files through email. The person receiving the mail should also contain the winrar program to decompress the file and read or use it. Decompress the file and winrar will automatically patch up all the parts to form the original file.