Overflow style header

hi I want to ask how can I show the content of the header without overflowing the width?

at the right the “Diperbarui” it only shows “Diperbar”, any suggestion how to fix this?
I think this is because of the width of the page and there is so many header

use style_cell:

{'minWidth': 10, 'width': 14, 'maxWidth': 20}

Or the widths you need.
I belive you need to use all together.