Files with UBK extension might be found as older ebooks in Embiid proprietary format.

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UBK file - Embiid ebook

What is ubk file? How to open ubk files?

File type specification:

E-book file type icon E-book file type

The UBK file extension is used for a proprietary Embiid ebook format. Looks like it was abandoned as Embiid closed in 2007 and ebooks in this format are pretty rare.

Help how to open:

There was once a reader available from Embiid but it is no longer available.

How to convert:

As far as we know, this .ubk file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.

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