How about using a numberformat of:

0000.0000
or
0000,0000

Depending on what your decimal character is.

Teri Yaki wrote:

How can I end a number in zero without an apostrophe or entering as text?
When I enter a number (ie: 6310.5130) the last zero doesn't show in the
cell, only in the formula bar. If I enter it as a number, it adds commas.
--
Teri

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Dave Peterson