.mobi — Mobipocket Ebook
An older ebook format historically used by early Amazon Kindle devices, largely replaced by AZW3/KFX.
Safety guidance (not a guarantee)
Plain documents are generally low-risk to view. If the format supports macros or embedded scripts, keep them disabled unless you specifically expect and trust them.
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Frequently asked questions
What is a .mobi file?
An older ebook format historically used by early Amazon Kindle devices, largely replaced by AZW3/KFX.
Can I edit a .mobi file?
Partially. .mobi files can be edited with the right tool (such as Calibre), but not with just any text editor.
Does having a .mobi extension mean the file is safe?
No single extension can guarantee that. Plain documents are generally low-risk to view. If the format supports macros or embedded scripts, keep them disabled unless you specifically expect and trust them. Always consider where the file came from, not just its name.
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