There are two ways to convert Access (MDB or ACCDB) files to dbf format.
Source database is also known as Access, Microsoft Access, MS Access
Target database is also known as dBase, FoxPro, Visual FoxPro
MDB to DBF Converter can work as a wizard:
you select one or more source files (.accdb or .mdb), the output folder, and there are several options to customise the output file, such as type of memo fields.
or you can use command line interface:
it allows you to run the program with predefined parameters manually or using scheduler to automatise routine work.