xlSQL Excel JDBC Driver

xlSQL is a JDBC Driver for Excel and CSV data sources. Documents can be read and written with SQL as if they were tables in a database. In the case of Excel, xlSQL maps a directory with Excel files to a database, workbooks to schema's, and sheets to tables. These tables can be queried with the SELECT syntax of HSQLDB SQL. All HSQLDB SQL features are supported in the driver. Native xlSQL is a rich subset of SQL for creating, altering and populating documents ( spreadsheets ).