The other method has been to convert the MDB file to Excel and then export that to a CSV file.
Of course my first response is to use the facilities built into that logging software, but there are some older software packages out there that do not support that conversion.
Over the course of the past 6 months I have had a number of private inquiries into a method to convert a log that is in Microsoft Access format to standard ADIF so they could import that log into another logging program.