The first thing to try is the 'Get Table' action in a read stage for any element within your table. Try using that with both the browser and accessibility (or UIA if 6.2) interfaces.
If Get Table does not return all the data within the table that you need then the table must be structured in a non-standard way. Your fallback option is to use the 'Get HTML' option in a read stage to return all the html for your table element and then you will need to parse the html into a collection with some clever string handling logic.