- Get the list of found tab names, or
- Get the data cells of an existing tab (of Worksheet type), and
- Interpret them as a two-dimensional grid of rows & columns, by default, the first row is taken as the headers, or
- Interpret them as a two-dimensional grid of rows & columns where each row (except the first one) is parsed as instances of a .NET reference type.
Check an example of that in the current executable functional specification here.