Hi Shrimpy,
Thank you very much for the update.
In Essential XlsIO we are supporting all the numberformats to the spcified type values as same as in MSExcel.
Please go through the following online documentation link for more deatails on Number Formatting.
http://help.syncfusion.com/ug_92/Reporting/XlsIO/Windows%20Forms/default.htm?turl=Documents%2Fnumberformatting.htmCould you please let us know your actual requirement in applying the number formats so that we can able to sory out easily. Please update the sample for the same if you have any concerns.
Please let us know if you have any futher clarifications.
Thanks,
Sridhar.S