Hi @issam.b.abdallah, thank you for your message, and thanks for your interest in our plugin
After making some tests and adding Arabic characters and some special characters(Polish) in the Repeating Group (Screenshot by Lightshot) - the entries show up exactly as they were added inside the database, please check the screenshot for reference - Screenshot-app.slack.com-2021.10.25-12_27_47.png - Nimbus Capture
Unfortunately, it is no possible to combine the tables so to download a single file (CSV). In case you will use the same ID to download the data, the plugin will create only one URL to download the data. Unfortunately, it cannot combine the data in one file.
In case you will add multiple IDs to download at once (Screenshot by Lightshot), the plugin will generate multiple download links for each Repeating Group (Screenshot by Lightshot).
Let me know if that helped, or if there is anything else we can assist you with.