You can choose what to include into the exported document (the comment or the notes for example or only the main text) and the scope of the document - is it only the currently selected one or all arranged texts in a Quick Group to export a complete Book for example.
Furthermore you can decide which file format you want or need to use (a Word Document for example) and in the Preferences you can apply the used font and font size for printouts and exported documents.
When using Markdown you can even create formatted documents and if enabled, applied tags (topics) can also be automatically written to your Spotlight database…
How to export a document
Use Menu > File > Export As…