In order to open a Pages file and actually be able to edit it on your Windows 10 computer, you'll need to use a third-party app like CloudConvert to convert it.

Learn about the File Explorer Ribbon, Features, Uses and Shortcuts. Learn how to open & use Explorer. Get Help with File Explorer in Windows 10.

Windows makes it easy for you to open up these files by setting up default programs for each file type -- images files, for example, will open by default in the Windows 10 Photos app.