.kfx Kindle book document
Other formats
| MIME type | application/vnd.amazon.mobi8-ebook |
|---|---|
| Description | Kindle book document |
| Category | Other formats |
| Based on | application/x-mobipocket-ebook |
| Other extensions | .azw3 |
Frequently asked questions
What is a .kfx file?
A .kfx file is a “Kindle book document” (MIME type application/vnd.amazon.mobi8-ebook).
How do I open a .kfx file?
With the program that created the file. On Linux, xdg-mime query default with the MIME type shows the default application, and xdg-open opens the file with it.
How can you tell a genuine .kfx file?
No fixed signature at the start of the file is registered for this format; it is recognised mainly by its extension. On Linux and macOS, file --mime-type example.kfx shows the guessed type.
Which format is .kfx based on?
Technically a .kfx file is a subtype of “Mobipocket e-book” (application/x-mobipocket-ebook), so programs for that base format can often read it too.
Which MIME type belongs to .kfx?
The MIME type is application/vnd.amazon.mobi8-ebook. In the Apache web server: AddType application/vnd.amazon.mobi8-ebook .kfx; in nginx: types { application/vnd.amazon.mobi8-ebook kfx; }.