In order to convert runtime-only .accdr databases from MS Access to CVS format, you will likely need to first rename .accdr file to standard .accdb extension and then simply File ► Save as.. your database to CSV format. This can only be done using MS Access as these database formats are proprietary and not well supported in other programs.
Convert Microsoft Access runtime mode database to Comma Separated Value.
We have found one software suitable in our database for this conversion.
Microsoft Windows software - convert accdr to csv on Windows
A popular relational database management system for Microsoft Windows, Microsoft Access is sold as stand-alone application, or as a part of Microsoft Office suite Professional edition and higher. Access uses own database format, to build databases, based on Jet Database Engine and also can import databases created by other applications.
Common file extensions for Access databases are accdb and mdb (previous MS Access versions).
Convert from accdr file
to csv file
The table with program actions contains information about what each program is capable of doing with their files. This may be a good pointer for further searches for certain file conversions and help you find the converter you are looking for if our search result is insufficient for you. However, it is far from perfect and may sometimes show results which are not really usable because of the nature of the software handles the files. So a conversion that appears as possible, just because of matched actions, may in fact not be possible.