Hello, I am newly getting started with C on an older Mac Book Pro.

OS X El Capitan 10.11.6
Apple LLVM version 7.3.0 (clang-703.0.31)
Command Line Tools
OS X 10.11

I am having trouble compiling a simple Hello world program.

It says the double quote,", is not an ascii character.

I used Text Edit, Plain Text, UNICODE (UTF-8).

Any help would be appreciated.