C program needed, please help.

I need to create a menu driven program that allows the user to enter up to 1000 words. The menu will have options to add more words and to create a text document with all words. The program will have an option to allow the user to dump all words from the program. The program will automatically look for an existing binary file (assuming the code was run before) it found, the program will load all words from the binary file into the program. Each time the program ends, all words will be saved/loaded into the binary file.