Resolved import repeater areas of chronoforms into subforms of custom fields

I collected a lot of user data (user CVs) via a form of chronoforms. I now want to replace this chronoforms form with a form that uses custom fields in the joomla 4 user area.

So far so good.

Now the data from chronoforms (exporting the data to a csv file) must be imported into the custom fields. I'm looking for a program that can handle repeater areas from chronoforms and subforms in custom fields. Does your extension support repeater areas of chronoforms and can import them into subforms of custom fields?

one repeater field of chronoforms looks for example like this:
"{""datum_von"":""2008-10"",""datum_bis"":""2010-10"",""arbeitgeber"":""xxx"",""position"":""Project manager "",""haupttaetigkeiten"":""- Production, Quality and Maintenance leading\r\n-Implementation of international Project World Class Manufacturing for Slovak division Weber\r\n-Planning of tasks and deadlines for concrete projects\r\n-Coordination of steps with related departments\r\n-Developing and supporting the Project Management Network throughout the plant, skills development,\r\ntraining and evaluation\r\n-To manage action for Slovak team and set goals in Multi-Site projects with external word wide partners participation\r\n-Supply Chain Management\r\n-Value Chain Optimization\r\n-Cost saving\r\nProject: Train and coach whole company in Lean techniques. New storage and production leveling via Kanban system and SAP. Year saving 1.7 – 2.5 Mio EUR for each plant and reduction working capital from 30days to 24 days of hands.""}"