It should be possible to import QIF files to Quicken and add them to accounting data, which could be then exported in QDF format. More specific information about this subject can be found at Quicken website.
Convert Quicken Interchange Format to Quicken financial data.
We have found 3 software records in our database eligible for .qif to .qdf file format conversion.
Microsoft Windows software - convert qif to qdf on Windows
Quicken is personal finance management program for Windows that comes in several editions: Quicken Deluxe, Quicken Premier, Quicken Starter.
Convert from qif file
to qdf file
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned qif to qdf. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
Apple macOS / Mac OS X software - convert qif to qdf on OS X
Quicken for Mac allows users to control transactions from multiple financial institutions and categorizing them all in one place, create a budget that keeps them on track today and manage investments for the future.
Quicken Essentials for Mac is Macintosh version of popular Quicken personal finance management software. It contains almost all features of Quicken for Windows.