A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
Hi Anams_473,
Thank you for writing to the Microsoft Answer Community Forum, I am Gunasekar, an advisor and a user like you, and I am glad to be helping you out today.
I understand you want to Update the data validation to all cells in the column. I have found related articles for your reference.
Here is a link:
- Select the cell(s) and click ‘Data’ from the tab list.
- Click ‘Data Validation’ from the ‘Data Tools’ group in the ‘Data’ tab.
- You’ll see the data validation dialogue box.
- Select ‘List’ under ‘Allow’
- Make sure the ‘In-cell dropdown’ checkbox is checked
- Lastly, supply the ‘Source’.
I hope this information helps. If you have any questions, please let me know and I’ll be glad to assist you further.
Best regards Gunasekar N