I got this answer after doing some R & D. Actually SalesReport or Financial Report return .gz formated file. You need to make this file downloadable. It will directly download on your browser. You just need to extract this zip file and open in Microsoft excel because the file has tab separated values.
PKT5330
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution