Btrieve 6.15 Data Extraction

We have an old (2003) windows application that uses Btrieve 6.15. There are 31 files with a 3 digit number as the file extension. There is also a file that ends with the extension .DBG We want to extract the data from these files so it can be loaded into another database application. We are happy for the data to be converted into any one (or more) of the following: - excel spreadsheets - .csv or text - access - anything that can be read by delphi 7 Note that the data conversion may need to be done more than once.