Unit conversion

Dear OVITO Community, I am using free version of this code and have to use it for converting Angstrom units(VASP’ POSCAR) into Bohr units(Exciting’s input.xml) of a structure. Or if that doesn’t workout then my fall back plan is to export a structure in scaled/fraction coordinates since by default OVITO export files in cartesian coordinates. Can anybody provide an example tutorial/steps that I can use as s a starting point. Thank you.