Hi Probably you want to show data in this notation 1 Data 1 Then try with following code

<table>
<tr>
<td border="1">¹ test1 ₁ </td>
<td border="1">² test2 ₂ </td>
</tr>
</table>

It should work as per syntax. May be there is some style is defined for textbox in any external css file that's why it is overriding the width during runtime. So, add css class to override width in Multiline textbox.