I tried to replace <teiHeader type="corpus" xmlns:tg=".../" xml:lang="eng"> with all its information with appropriate file using xi:include in the following way: " <xi:include href="corpusHeader.xml"/>". The file corpusHeader.xml is valid, the xi:inc...

It really works!!! Thank you very very much!!! I tried as you have said from the menu Document, and I got DTD file!!! Once again, thank you!

I'm new to Oxygen and may be my question is very simple one, but I tried to create valid XML in Oxygen, the program said that it's valid, but when I tried to convert it to XML 1.0 DTD, the program gives the following message: com.thaiopensource.relaxng.output.OutputFailedException I don't understand...