Files with yjr extension are auxiliary / metadata files for Kindle KFX format, such as annotations or other store data.

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YJR file extension - Kindle KFX auxiliary file

What is yjr file? How to open yjr files?

File type specification:

E-book file type icon E-book file type

File extension yjr is used for one of the two auxiliary files in the Amazon Kindle KFX format. Might contain annotations, bookmarks or other similar metadata.

KFX format is eBook format created in the Kindle Format 10 (KF10), Amazon's successor to the AZW3 (Kindle 8) format.

Updated: January 30, 2024

Help how to open:

These files cannot be opened on its own, but are loaded in Kindle together with KFX ebooks.

How to convert:

No export for this files is possible.

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