.DEVICEINFO File Extension
What is a DEVICEINFO file?
Record file created by iPhone Configuration Utility, an Apple application used for managing device configuration profiles; contains information about iOS devices created by the iPhone Configuration Utility; Certificate data and a list of applications installed on the device are some examples of the data it holds.
You can create a DEVICEINFO file by selecting the "Export" icon next to "Share" in the top-left of the iPhone Configuration Utility window. Fill in your desired name for the record, save location, and confirm that the "Export type" is selected as "Device Record" in the dropdown menu. Then click "Save."
NOTE: As of iOS 8 Apple iPhone Configuration Utility is no longer available.