Make the_size optional
Add num_format_str
Rebuild bold
Add needed_size
Add needed_bold
Use needed_size, needed_bold
Use prepare_font_size
Rename to prepare_cell
Add wrap
Rename to size
Use prepare_cell
Use prepare_cell
Use prepare_cell
Add vert
Add horz
Add n7_style
Add zapisz_swobodne_polaczone_komorki