If you’re dealing with a web table on a browser, it’s a comparatively different story because you can’t use integrated Excel activities.
But the logic is essentially the same. In a webtable, usually the rows and columns will follow a consistent naming convention,
e.g. A datarow may look like
<id='tableRow' row='row1' col='col1' />
The above is strictly a sample selector.
Inspect two neighbouring rows, and columns of those two rows. This will show you how they are different, then put a generic logic to match the pieces that uniquely identify each row and column.
Use ‘UiExplorer’ for more details, just using ‘Edit Selector’ may not give you all the details you need.