Export custom fields to CSV / XLS

Hi there,

Is there any possibility to export all custom columns to CSV / XLS?

In our project I added a dozen custom columns, most of them are text fields. But export to CSV (or XLS) ignores most of these fields. I am not able to add them in the CSV Export settings, they don’t even appear there. I don’t see any regularity in which fields appear and which do not.

Thanks in advance for all helpful answers in advance.

Please share a sample project and the result of exporting.