_oWorkSheet.Cells[column, 2].Formula="'C:\blp\api\dde\Blp.xla'!BLP(CONCATENATE($A2, " equity"),"bid")";
_oWorkSheet.Cells[column, 2].Formula="'C:\\blp\\api\\dde\\Blp.xla'!BLP(CONCATENATE($A2, \" equity\"),\"bid\")";
when i am adding formula to excel cells the following error is ocured.
Invalid formula:"'C:\blp\api\dde\Blp.xla'!BLP(CONCATENATE($A1, " equity"),"bid")"
please resolve it as soon as possible
Manish