關於「If value then blank」標籤，搜尋引擎有相關的訊息討論：

Return blank if - Excel formula | Exceljetexceljet.net › FormulasIf Cell is Blank Then ... Return Value or Blank in Excel - YouTubewww.youtube.com › watchHow To Quickly Fill All Blank Cells with A Value in Excel - YouTubewww.youtube.com › watchReturn blank if #VALUE is returned