As I said, I looked at the ODBC options loaded with A2010 and Approach isn't among them. You probably need an earlier version of Access or you need to get the driver from Lotus directly.
Assuming you find an ODBC driver for Approach, it will only convert data. It will NOT convert any of the other parts of the application. That's not what ODBC drivers do. They simply allow you to access data in different formats. I have never seen a tool that converted an Approach application to Access but that doesn't mean they don't exist. Try searching for that specifically. You might get lucky. But, I would be prepared to rewrite the app were I you and just be happy that I could convert the data easily.
If you don't find an ODBC driver, you will need to have Approach so you can export the data to csv or xls files.