Accepting this challenge??

THERE IS A FILE IN THIS ZIP. THAT FILE HAS EXTENSION ".sfd" . Does anyone know how to open that file properly without damaging it.I have googled a lot but couldnt find any answer.I have heard a lot about XDA. Let's see if any one present here is capable of opening it

Attached Files

data.zip - [Click for QR Code] (2.0 KB)

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