Hi 
Wine (=Wine Is Not an Emulator (because it uses a far more sophisticated approach)) also "PlayOnLinux" are ways of getting some (many) Windows programs to run on Gnu&Linux (or Mac i think). It requires a bit of work sometimes and even if successful means you are still stuck in the same trap as Windows users and theoretically make your Gnu&Linux system more vulnerable to some of the same security problems.
It's pretty rare for a Doc file to completely refuse to open in LibreOffice. With DocX is slightly less rare. It's much more likely that the file is corrupted or also has problems in other versions of MicroSquish Office or even the same version of MSO on a different OS. It's more often been the case that the LO user in any company has been the one used as an intermediary between users of different versions of MSO within that company.
A more usual case is that stuff written in MSO is re-arranged a bit in other versions of MSO or in LO. To some extent that is only to be expected when using editable formats because different printers and other settings can change the layout. Images, pictures, text-boxes and other inserted items are more likely to be moved around than the normal text and headings. The standard work-around for all this is to supply people with a Pdf of the document along with the editable version. Pdf 'should' display exactly the same regardless of program and regardless of platform but it's not easily editable. File-size tends to be quite small though.
When you create a Pdf with Word it compresses it with jpeg compression which gives all the text a kind of wake and adds random speckling to the document. When you do the same with LibreOffice you get tons of choices including a "hybrid" option which embeds an editable Odf within the Pdf. It increases the file-size a bit but not by as much as i would have expected but only other LO users can actually edit the Pdf. Other options include making it more compatible with screen-readers for blind or partially sighted users (or for people that just don't want to have to sit and read). Another option leaves it uncompressed or can increase the compression to ridiculously small file-sizes.
So, i guess the question is have you really tried opening the file on another Windows box. People assume that if it's written in Word then it will open the same and look the same in any other Word but that is quite far from the truth.
Regards from
Tom 