Ok, hang tight, I have faith you can do THIS!
You have to have the "Developer" tab enabled to get to Macros. Enable your sheet to accept VBA MACROS(depending on your version of O/S, let me know!).
You will cut and paste the above code into the sheet "general" tab. Once you get into VBA (visual Basic for Applications), you will see an index on left of sheet names, click worksheet. Once you click on worksheet, the page should change states, and allow you to write code, paste the code into the page, and push the "Play" key.
Test it out. IMPORTANT. what version of excel!
I am here for you!