It’s not that hard to convert Microsoft Office files into G Suite docs, sheets or slides, so you and your teammates or clients can collaborate via Google Drive. But thing is, it’s just so much easier if you don’t have to. Now, Google has rolled out a feature that gives you the power to comment directly on Microsoft Office files, PDFs and images uploaded on Drive. You simply have to highlight the part you want to comment on in Preview mode (like what you’d do on a G Suite file), click the Comment icon that pops up and type what you want to say.
Google Drive enables commenting on Microsoft Office files