If you have an Office 365 account, you can edit documents in Word Online, spreadsheets in Excel Online and presentations in Powerpoint Online from within Lumi, there is no need to download and re upload them.


Just click to open any file.


Afrer you open a file, hit "Edit in Browser" and sign in using your personal or work Office 365 account. 

Save your password so you don't need to log in again.


To switch accounts or sign out, go to portal.office365.com