Lost xml files, how we file revised returen

Could you please be a little more clear? I don't exactly understand your problem.

I'm assuming you've lost your .xml files, and you wish to download them.

You can download the .xml files from www.incometaxindiaefiling.gov.in. After logging-in, go to the "My Account" tab on the blue options strip on the top of the page. After that, select, "My Returns/Forms". Once you've clicked that, you'll see the returns and other forms that you've filed from that particular account. Click on the Assessment Year for which you need the .xml file(the acknowledgement number). From there, you can click on the XML tab to download your .xml file.

However, I'm not sure if you need the original xml file to file the revised file. I think you can simply upload the revised return, without the xml files. Regardless, if you need them, you can follow the above procedures.

And you need to ask the technical staff of WINMAN if their software allows the user to open a return via it's .xml file. Most softwares don't allow it, so I guess you will need to re-enter the figures manually.