[Conversion Request] epub to azw3 is available, but reverse is not

[AdimoUK]

What file formats are missing?

.azw3 file is an ebook for Kindle format. You can convert for example .epub to .azw3, but the reverse isn't available.

What converter should be added

Not Necessary - Calibre is already in and capable of this

When uploading the .azw3 file, the dropdown for options is completely empty:

[pm0u]

With Amazon not allowing azw3 to be sent over email it would be great to be able to convert to epub for this purpose 🙏