.PSN File

The psn file extension is mainly related to the Post-it Notes, a simple to use software that lets you make and organize lists, plan projects step by step, sort your notes by category, personalize messages with photos, even set alarms to remind you of appointments or key dates, developed by 3M.

This psn 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:

You can open these files in Post-It Notes.

How to convert:

As far as we know, this .psn 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.