[enter image description here](https://i.stack.imgur.com/Kl7JA.png)[enter image description here](https://i.stack.imgur.com/JT6w1.png)

This is a phone book in Excel. I have this type of Excel sheet. This page has 2000 lines. When I write the number, column B if there is a number in this table, (check column B) it will automatically write its name in the column A.

| column A | column B |
| --- | --- |
| name | phone number |
| john SMITH | 222 222 22 22 |
| alice JOHNSON | 333 333 33 33 |
| sam BROWN | 444 444 44 44 |
| john WHITE | 555 555 55 55 |
| tim WALKER | 666 666 66 66 |
| \*\*\*\* | 444 444 44 44 |

When I write here 444 444 44 44 it will automatically write its name in the column A sam BROWN.(\*\*\*\*)