Microsoft Word is very popular in businesses so you may want to upload a Word document to your WordPress site then link to it so that visitors can view it.
An alternative is to save your Word Document as a PDF file which will be more popular for your visitor to read from, because they use the free Adobe Acrobat reader already installed on their web browser and don’t have to buy Word from Microsoft. If your version of Microsoft Word doesn’t have a PDF print option then download this free program called Cute PDF, I use it all of the time.