[Mobile] SeeTheSharpFlag

I am stucked with this challenge, found the place where the flag is but no known software to open that type of files is working to me, the file headers does not seem correct, if anyone that solved it can pm me I would really appreciate it.

Edit: just solved it! It was a nice challenge, thank you creators!
Edit2: It is interesting what thinks can come up from google if you know what magic to search

It really helped me that I can see sharp! Nice challenge indeed, thanks for this!

Can I have a point in the right direction please? :confused:

Pretty fun, clue to get going is in the name. After that, its pretty straightforward