Add option for preserving trailing zeros?

Currently TableTool remove trailing zero and decimal point whenever it can. For example, `1.0` becomes `1`. I want it to display literally what I input. Is there anyway to set TableTool? Thanks for any suggestions

Start by locating the TableTool code that formats numeric cell values and reproduce the reported conversion of `1.0` to `1`. Determine how an option can preserve the literal input, then verify that enabling it keeps trailing zeros and the decimal point while existing behavior remains unchanged.

Written by the indexing model from the issue text.