These labels are also provided in DOC (Word template). Yes, you can use Office Word to load the DOC templates and then print them after the necessary changes have been applied. Theoretically, you should be able to print the templates with the Formtec Design Pro as well if you have them in the proper format, but Word should be more than enough to do it.
I also recommend checking the FAQ page and especially the question number 1 for additional instructions regarding the way to print the labels: http://www.formtec.co.nz/pages/6/faqs.htm