Excel recognizing Booleans and making them ugly

If I enter this in a cell:

True

Excel automatically displays it ALL CAPS and centers it in the cell.

What’s going on with that, and how do I stop it?

I don’t think I want to do something like formatting this particular cell. And I don’t want to have to enter the text with a quote before it, like this:

'True

I just want Excel to stop messing with cells if I enter “True” or “False” in them.