Check Staff ID Validation
I need to ensure the last character of the 'Staff ID' is a number to maintain data consistency and prevent errors in our HR system. Manually checking hundreds of IDs is time-consuming and prone to mistakes.
=ISNUMBER(VALUE(RIGHT(A2,1))) How it works: This formula works by first extracting the last character of the Staff ID using `RIGHT(A2,1)`. The `VALUE()` function then attempts to convert this extracted character into a number. If the character is indeed a number, `VALUE()` will succeed; otherwise, it will result in an error. Finally, `ISNUMBER()` checks if the result of `VALUE()` is a number. It returns TRUE if the last character is a number and FALSE if it's not, allowing you to quickly identify invalid Staff IDs.
Data Setup
| Staff ID |
|---|
| NM12345 |
| RN67890 |
| LPN123A |
| MD4567B |
| PT98765 |
Step-by-Step Guide
Open your Excel sheet containing the 'Staff ID' column (e.g., Column A).
In an adjacent empty column (e.g., Column B), enter the formula `=ISNUMBER(VALUE(RIGHT(A2,1)))` in the first data row (assuming your data starts from A2).
Press Enter to see the result for the first Staff ID.
Drag the fill handle (the small square at the bottom-right corner of the cell) down to apply the formula to all other Staff IDs in your list.