Hi, Abhijeet!
From your 'til now 123 posts, 122 1/2 were of the type "I want..." and "give me macro", so IMHO if I were you I'd start immediately with a VBA course. Check what this site has to offer you: http://chandoo.org/wp/vba-classes/
Regards!
PS: Regarding your question, have you tried to contact the author of the posted file?