Format the field as numeric with 2 decimals. That's all. From the menu bar: Format>Cell Properties, then choose Number. Or via the right click menu.
This is very basic. You might find it useful to read an introductory book on Excel. Have a look in your bookshop or public library.
Kees
I keep wanting to write in let's say : 15.30
Yet it changes to 15.3
or if I write 00, it changes to 0
how do I make it stop from changing it?

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