You select which fields you want to export as many of those fields may not need to be exported, or have no associated ADIF tag. The ADIF option will require the user to marry up the Access fields/column name to their appropriate ADIF tag. The utility will import any Microsoft Access mdb file and display it in a tabular grid format.
So yesterday, as it spent the better part of the day raining and totally screwed up the outside plans I had, I developed a utility to do just that. I had actually considered developing this a few years ago, but after a hard drive crash I never got back to it. That work if you happen to have a full blown suite of Microsoft Office. 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.