To add a document location in Excel 2010 first open a excel spreadsheet. See the highlighted (Custize Quick Access Toolbar).
Click the list button and select More Commands… option
Now a new dialog box opens. Click on the highlighted arrow button.
Select the “Document Location” from the list and click on the ADD>> button
It will be added to the Quick Access Tool Bar. Now click OK button.
The document location will be appeared on the Quick Access tool bar as highlighted below.