(resolved)Help opening file

[Inferno]

When i try to open my game file to the editor not the testing,it says unexpected file format
what should i do
ive already did the begging of my game and i cant veven make a brand new game 

[:)]

- did you accidentally rename the file into a different extension?
- does it say this for all games?

[Inferno]

no i dont believe so...i dont know how
and i cant make a new game so i cant check