=IF(A1=B1,"PASS","FAIL")

##</code><code>##

 $Sheet->Cells(3,1)->{Value} = "=IF(A1=B1,"PASS","FAIL")";

##</code><code>##

"Win32::OLE(0.1703)error 0x80020009" "Exception occured"
in PROPERTYPUT "Value" at excel.plx line 37