File Handling
In C, you can create, open, read, and write to files by declaring a pointer of type FILE, and use the fopen() function:
FILE *fptr; fptr = fopen(filename, mode);
FILE is basically a data type, and we need to create a pointer variable to work with it (fptr). For now, this line is not important. It’s just something you need when working with files. Continue reading C Files