I see a lot of .onebin files in OneNote cache folder. As recently I had problems with lost changes in an offline copy I want to know if it's possible to recover information from this files.

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This take me some time, because on internet I couldn't find information about .onebin extension, but if you go to the unzipped folder OneNoteOfflineCache_Files it contains the binary original files, so you can rename it and use to recover information (knowing the date of creation may help...). In my case I have recovered images as .jpg and some excel (xlsx) files.

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