Data sheet
[TABLE="class: grid, width: 500"]
<tbody>[TR]
[TD]A1 (Header)[/TD]
[TD]Result[/TD]
[/TR]
[TR]
[TD]859[/TD]
[TD]859_[/TD]
[/TR]
[TR]
[TD]859A[/TD]
[TD]859A_[/TD]
[/TR]
</tbody>[/TABLE]
Keyword sheet
[TABLE="class: grid, width: 500"]
<tbody>[TR]
[TD]Find (A1)[/TD]
[TD]Replace (B1)[/TD]
[/TR]
[TR]
[TD]859[/TD]
[TD]859_[/TD]
[/TR]
[TR]
[TD]859A[/TD]
[TD]859A_[/TD]
[/TR]
</tbody>[/TABLE]