Centering the text in a column heading

Hi Anonymous 
When it comes to cell content, you can use the UNICHAR(10) function, as AmiraBedh suggested.
However, in your case, it’s about a column header, and there’s no way to do that if it’s a table and not a matrix where the header is a cell in the data table.
What I do see is that below the word "usage" there’s an explanation, so if the table doesn't have to scroll, you could  add an "i" button or something similar, and then when the user hovers over it with the mouse, they will see the explanation.:
Like here:

This will also save you from having to widen the column beyond the number, as well as reduce the cognitive load on the user who would otherwise have to deal with too much text.

If this post helps, then please consider Accepting it as the solution to help the other members find it more quickly