You might noticed DataSheet view doesn't work.
you get a alert, something like:
The list cannot be displayed in Datasheet view for one or more of the following reasons:
- A datasheet component compatible with Microsoft SharePoint Foundation is not installed.
- Your Web browser does not support ActiveX controls.
- A component is not properly configured for 32-bit or 64-bit support.
Now, assuming you installed 32 bit office and using 32 bit IE, you might be puzzled as to why this doesn’t work.
I found that if you install this component data sheet will start working:
I am using windows 8.1, but I am pretty sure this issue happens on all windows clients with Office 2013.