Tamas,

What I suggested should have worked regardless of the type of the cell. In other words,

transform(value) <="3.2"

>Thanks everyone for you answers!
>
>I rechecked and tried the followings:
>
>

>FOR nRow = 1 TO  oExcel.ActiveWorkBook.ActiveSheet.UsedRange.Rows.Count
>    IF oExcel.Cells[nRow, 9].Value <= 3.2
>          oExcel.Cells[nRow, 2].Interior.Color = RGB(255,153,255)
>    ENDIF
>ENDFOR
>

>didnt work, same error message.
>
>

>FOR nRow = 1 TO  oExcel.ActiveWorkBook.ActiveSheet.UsedRange.Rows.Count
>    IF oExcel.Cells[nRow, 9].Value <= "3.2"
>          oExcel.Cells[nRow, 2].Interior.Color = RGB(255,153,255)
>    ENDIF
>ENDFOR
>

>didnt work either, same error message.
>
>I also tried what Hilmar suggested: checked the condition if it is numeric.
>I put it in a variable like this ...
>

>? TYPE("oExcel.Cells[2,9].Value")
>

>and it turned out to be numeric.
>
>I didnt understand why it works with a character data type field and gives error with numeric.