.3IN File

The 3in file extension is associated with the MSN Explorer, an internet browser for Microsoft Windows operating system.

The 3in file stores setup information data.

No further information could be found.

This 3in file type entry was marked as obsolete and no longer supported file format.

This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.

How to open:

Probably not meant to be accessed by the user.

How to convert:

Probably cannot be exported to other formats.