QDepo (formerly TPDA - Query Repository Tool) is a desktop application for retrieving and exporting data from relational database systems to spreadsheet files. The graphical user interface is based on wxPerl or PerlTk. The main feature of the application is the SQL query repository management. The repository consists from a collection of XML files that ca easily be moved or copied to other computers. The supported formats are Excel (.xls), ODF, and CSV. Database management system support includes CUBRID, Firebird, MySQL, PostgreSQL, and SQLite.