In Notability you can import the following formats:
- PDF: the app automatically converts .docx and .ppt to PDF when you import them into the app. The PDF format is not editable, you can only annotate it.
- .Note that is the Notability native format. This is an editable format.
- RTF will allow you to edit text you import into the app.
- Audio files are also editable in Notability.