.MOBI File

File extension mobi is used for the Mobipocket books file format, a binary format for the distribution of eBooks. It is one implementation of the Open eBook Publication format with a number of proprietary extensions.

Mobipocket supports most features of standard HTML to format and layout text and images.

There is a reader for personal computers that works with either encrypted or unencrypted Mobipocket books.

A user can thus create documents in the Mobipocket-format (*.mobi) and use personal comments, bookmarks and so on on all devices supporting those features.

Additionally, Amazon offers a free program called KindleGen which can convert or create documents in the Mobipocket format.

Files with mobi extension can be typically found as e-books saved in Mobipocket format, now mostly used by Amazon.

How to open:

Unencrypted Mobipocket books can be read on the Amazon Kindle e-Reader device natively as well as in Amazon Kindle apps on Mac OS X, the iPhone, Android devices, Windows, and Windows Phone devices.By using third-party software programs such as Calibre, unencrypted Mobipocket books can also be read on Windows and Mac computers Linux computers..

How to convert:

You can convert MOBI e-books to another e-book format using specialized e-book converters.