when copy/pasting from excel , row total (=c1+c2+c3) is shown as #SCL.
in earlier version this was working fine
Which functionality you are using to copy|paste data from MSExcel ?
When using block-selection features - pasting values in cell used in math formula results in recalculation of math cell
If you are pasting data in cell which contains result of math calculation - the calculated value will be replaced with pasted one.
If you are using addRowFromClipboard - please contact us directly at support@dhtmlx.com - we will provide updated js code, which will work correctly in described scenario.