When I opened it up this morning, it opened to Course 1.
Since I like things easy, I tried looking online to figure out how to make the spreadsheet always open to where I want it to. But after some searching, and not knowing the correct terminology probably, I could not find what I was looking for. With some tinkering though, I found out how to do it.
Step 1 - Open your spreadsheet.
Step 2 - Go to the bottom of the page where the tabs for the different spreadsheet pages are.
Step 3 - Simply click and drag the tab of the page you want to display first to the far left.
It is that easy and I did a headsmack when I figured it out.