Hi Andy,
Documentation:Please download the local documentation install from the below location.
Local Documentation and class reference:http://www2.syncfusion.com/Installs/help/syncfusionessentialstudiohelpsetup61.zip (120 MB)
Online documentation is available in the below locations.
Online Documentation:http://www2.syncfusion.com/ug_61/common/default.htmlOnline ClassReference:http://www2.syncfusion.com/cref_61/-1-13-index.aspxPlease try this and let me know if this helps.
Regards,
Nanda