- Why does ISTEXT return FALSE for a cell that looks like text?
- The cell is likely formatted as a number or date, not text. Check alignment: numbers right-align, text left-aligns by default. Select the cell, format it as Text, and re-enter the value. Then ISTEXT will return TRUE.
- Can ISTEXT detect text that looks like a number, such as '123?
- Yes. If you type '123 (with a leading apostrophe in Excel), it stores as text and ISTEXT returns TRUE. This is a common data trap—numbers entered as text break SUM() and other calculations.
- How do I use ISTEXT to clean a column with mixed text and numbers?
- Use FILTER: =FILTER(data, NOT(ISTEXT(data))) extracts only numeric rows, or =FILTER(data, ISTEXT(data)) extracts text rows. Then move results to separate columns to handle each type appropriately.
- Does ISTEXT work with formulas that return text?
- Yes. If a cell contains =CONCATENATE(A1,B1) producing text, ISTEXT returns TRUE. If the formula returns a number or date, ISTEXT returns FALSE. It checks the result type, not whether a formula exists.