You can, but it's clumsy. You can't target excel tables (only sheets and named ranges), no autocomplete and syntax highlighting. This addin also provides additional .NET funcitonality (e.g. regex match/replace, xpath, various date functions etc...) exposed as SQL functions, allows tht user to call VBA functions from SQL and can connect to an existing database to import/export data to/from a database. (disclaimer: I'm the author)