This is an ofxstatement plugin that can generate OFX files from CSV files exported by Komerční banka, a Czech bank.
To install this plugin, download or clone the sources and run
$ python3 setup.py install
Or, to install for the current user only:
$ python3 setup.py install --user
To download a CSV file from Komerční banka, go to their online banking site and log in. Go to the "List of payments" page and click the link "detailed summary". Choose a date range and click the Display button. Then click the link 'Save in CSV format' at the bottom of the page.
To convert to an OFX file, run
$ ofxstatement convert -t komercni transactions.csv statement.ofx
The plugin will work with CSV files that are exported either in English or in Czech.