I realize this thread is kind of old but I was just trying to figure out the same and figured it out. I'm on Office 2010, just go tthe "data" tab and then click on the "filter" button. On my spreadsheet it automatically pulled all the column data and created the checkbox. hope this helps.

On Wednesday, January 8, 2014 9:07:41 PM UTC-8, wrote:
Hi Hao,



Were you able to find a solution to your problem of having a list of checkboxes in a dropdown list in excel?



Thanks

Anubha