Support of Excel Tables

Hi,

would it be possible to support [Excel Tables](https://support.microsoft.com/en-us/office/overview-of-excel-tables-7ab0bb7d-3a9e-4b56-a3c9-6c94334e492c) as it's so more convenient than plain sheets? We could import the excel table dataset into duckdb by using table names. Named ranges could be also loadable the same way.

Thanks

The issue proposes importing Excel Tables into DuckDB by table name, with named ranges as a possible extension. No files, tests, or entry points are identified; first clarify the supported Excel inputs and expected import behavior with maintainers. Done should include agreed support for the requested table names and documented tests for the resulting datasets.

Written by the indexing model from the issue text.