Chavak: Good to kow this is useful for you. It should go without saying that even though EZ-EDS can let you edit and EDS file, nobody other than the maker of the EtherNet/IP (or DeviceNet, or ControlNet) device should ever change the contents of the EDS. Because when the device is submitted for conformance testing, the EDS is part of the submission to the test lab. So if an end user changes the contents of the EDS file, the behaviour described in the EDS file may not conform to the actual firmware and so the maker of the field device cannot warrant the product. For safety devices it is even more stringent as the EDS file has signature.
But, for looking inside into your devices EDS file, especially if the scanner you have does not have a great engineering tool that can let you see the details of your device, of course EZ-EDS is a great tool, and in my opinion, kudos to ODVA for making it free of charge to any body interested in learning CIP technology.