Docbook support

Hello, tried to upload into Crowdin my docbook files (.dbk), have and issue with that. Does Crowdin support this format? Maybe some aditional options should be enabled in the project? Please guide me.

It’s a new feature (docbook support), released few weeks ago a or so, you need to install this thing in order to be able to upload that file format:
(can be find in Resources → Applications → Docbook)