Help with an Excel question, I want to center the page on screen?

I want the page to look like a word document on screen. Or, in other words just as it will look when I print.

I have already centered the information on page and I hid the grid lines and ruler. It looks perfect.

I tried putting it in page layout view, but the page is on the left corner with blank pages where I can “add data” to the right and below. I want to get rid of those extra pages, and just have my single page with the information on it centered on the computer.

Once I set it up correctly, will it open like that for people I send it to?

Bonus question: how do I lock the formulas, but allow others to add data to the rest of the sheet. I’d prefer not to have a password on the lock.

Thanks.