I can open, edit, create new and save any Office file with Libre Office. There's also OpenOffice that will do the same as will Calligra apps. MS isn't going to sell Office to linux users, especially considering MS Office has gone to the SAAS model with Office 365 being web based. If a Linux user wanted to use 365, they could have been for a few years now. Adobe as gone SAAS web versions as well. All you need is a browser. OS independent.
I know one thing... It is absolutely bewildering how so many would put up with this abuse from a company and product they have to pay for.
If all one needs is to view a PDF file on MS Windows, the Chrome browser tracking abomination from Google will enable you to do so.
But there are open source solutions too...