I found it frustrating in Microsoft Office Professional Plus 2016 that a Word document, for instance, opens in my web browser and not the app. It is not obvious, but you can open the document in the desktop application with little trouble. Below are the steps:
- Open Microsoft Office.
- A list of recent documents will appear along with a list of Microsoft apps on the left side. If your document is in the documents list, hover the cursor over it. When you do, 3 vertical dots will appear to the right of the title (the More Options Menu)
- Click on the More Options menu and select Open in Desktop App and the app that was used to create the document will open the document in the app.