@afodr

Desktop templates can not be imported to QBO at all.

Desktop is more functional than QBO, the chance that there are custom fields is high in desktop, and those fields do not exist in QBO.

In QBO you have to start from scratch with the (sad) built in templates, or use the advanced template designer in word.  Last I checked you first had to go to the  menu gear>settings>quickbooks labs and turn on custom styles (or whatever it is called)