AFAIK, it's not possible to do this with formatting.

On 15 Nov 2004 06:44:35 -0800, (Woo) wrote:

I am trying to create a cell that can accommondate characters and
numbers. The first 12 spaces in a cell should reserve for character,
and the 13rd onward will be numbers. For example, if I enter ABC123,
it should written in the cell as 'ABC 123'.

Any idea?

Please help. Thanks.