Versions: SharePoint 2013
In SharePoint 2013, the Datasheet view was replaced with the new Quick Edit option which works now in all browsers (since it is no longer using ActiveX).
However, the new Quick Edit mode does not support all the “Excel-like” features that many of the end users got used to in SharePoint 2010.
But help is available from Kwizcom.com for your entire SharePoint Farm.
As always, learn to Enjoy Every Sandwich !