In the Access 2013 web apps, one of the most frequent feature requests from users was the need for an easier way to view their web app data in Excel. Microsoft today announced a new feature called, “Download in Excel” that will be available to all of Access 2013 Office 365 customers, which makes the process of viewing data in Excel much simpler.
The changes are on the server side which means you do not need to update your Access client program at all. This update is available for customers using Office 365 with Access Services so look for this feature soon within your web apps and try it out. When viewing any datasheet views in your browser for your Access web app on Office 365, you’ll see the new Download in Excel button on the right side of the Action Bar, as shown in the above screenshot.
Source: Office Blogs