C forms .xml filling

Dear Sir,

I have tried filling online C Forms from vat.kar.nic.in, my problem is we are having approx 30 invoices per quarter wherein I seen that .xml converter is provided to make the work easy. I tried using the same but unable to complete the same as I am getting some error. I would be glad enough if anyone would help me in filling the .xml file. 

Enclosed attachment is the .xml file converter. Please find the same in order. 

Thanks & Regards

Deepen