Precede the entry with a single quote...

'012345

Or format the cell as 'Text'.

Hope this helps!

In article ,
Teresa-Hot Iron <Teresa-Hot wrote:

I am trying to do a spread sheet in Excel that requires me to put in item
numbers that begin with the number 0. However, when I type in the # and hit
enter, the 0 goes away. How do I format the cells to keep the 0?
Thanks!!