Log in to your account on https://app.mangodisplay.com and choose the display you want to edit.
Click '+' on the lower right corner of your display to add a widget.
Then choose "Google Docs"
Here, you can paste the link to the document, spreadsheet or slides that you would like to display. When pasting a link, make sure that the URL is public. You can also choose how often you want you want the file to refresh on your display.
When you are done press "Save".



