Column width CALC - linux different from windows

I made template documents in CALC where the width of each cell is different.
Switching between excel and libreoffice in windows is not a problem.
Switching to libreoffice on Linux, all cells have a different width. Layout is gone.

Any idea how to preserve column widths in different operating systems?

thanks in advance

You mean every cell has a different width or all cells are same width but different then on Windows? Are cells empty? Do you use different fonts in GNU/Linux then on Windows by default?