0s get erased?

[JWibstad650]

I'm new to using excel and need to put a zip code into a space. say I put in 01234 as the zip code. The 0 always gets erased once I click enter. I don't know how to fix this.

[#2]

@JWibstad650 

Hi there,
In this case, please use The apostrophe (' or ') character.
For instance, '01234.
This must be solution.