I have a client that is using a DOS program based in CTREE. The tables have a .db and .dbi file extension. I am creating a new program for them in MYSql and MS Access. I have thus far not been able to open any of the tables using Access or Excel. I need to be able to get the historic data out of the tables to populate the new tables. When I attempt to open the tables in Excel, I get a message that states "This file contains queries ti external data. Queries are used to imprort external data into Excel, but queries can be designed to access confidential information . . ." I click OK and get the following message; "External table is not in the expected format." Do I need an ODBC (datasource) driver to access this data. If so, where can I get the driver (datasource).