If you would like to enable Shared Workbook option, here's a way to add it to Excel Quick Access Toolbar. It is hidden under Excel Options.

Learn how to add Windows Calculator to the Excel Quick Access Toolbar for performing quick calculations. The Quick Access Toolbar in Excel is one place where all your shortcuts can be placed ...

More extensive edits must be done in Excel itself. Here, an eXpresso plug-in streamlines the process – letting me open, save, and change properties of online files from the Excel toolbar.