In this video, I show you how to write strings to a file. You'll learn how to research online documentation about structures and functions declared in the stdio.h header file. I explain how to declare a pointer to a FILE structure and use the fopen() function to open a file. I explain the differences between file modes "r", "w", and "a". Once you have an open file, I'll show you how to use the fputs() function to write strings to the file.