It looks like Microsoft has added another browser extension in the Windows Store for their Microsoft Edge web browser.
The Office Online browser extension for Microsoft Edge provides a handy set of menus directly in the browser that allows you to create, open and save documents to your OneDrive and OneDrive for Business cloud storage accounts.
The initial install of the extension took about 30-40 seconds as I waited for Microsoft Edge to open and prompt me to activate the extension but after that signing in and approving access to my OneDrive account was very quick.
This gallery will show you the install, setup and menu options in the extension.
Note: This extension is only available for Windows Insiders running the latest builds from the Redstone development branch.
Thanks to Walking Cat (@h0x0d) for the tip.