=IF(ISBLANK(A8),"",IF(A80,"Closed","Open"))
If you really mean AH8, then change above references from A8 to AH8.

"roy.okinawa" wrote:

I have this formulas in column B: =IF(AH80,"Closed","Open")

When I copy this formula down column B into blank rows, Open appears in all
those cells below B8 of column B even though there is no data enter. I want
these cells to remain blank until data is entered to start the new row.