Corrupted Character Encoding in the sketch.

Hello,

I had written almost all of the code for a project that I am working on. Suddenly when I opened it today, half of my code is replaced by some unknown characters. I tried fixing the encoding but that didn’t help. Did anyone have this issue before or have any idea on how to solve it? I have attached the portion of the code where it starts happening.

Some help will be greatly appreciated.

ArduinoSketchProblem.JPG