[Dev-C++] Need some help for a program using fstream

[<mi...@ju...>]

Hi everyone, i started using C++ a year ago and I'm having trouble with a
seemingly simple program.  In our class we need to get a text file.  We
then have to get its contents and convert all the letters to lowercase. 
Could anyone perhaps give me a basic outline of how to set up the way to
get a files contents and then change them?
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