Files with GUP extension can be found as part of Zope POP Mail.

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GUP file extension - POP mail file

What is gup file? How to open gup files?

File type specification:

Internet related file type icon Internet related file type

The GUP file extension was reported to us for being used in POP Mail Zope for one of its file. No further information regarding this file type could be found and it seems its pretty old, so most likely obsolete.

Help how to open GUP files:

This file type is not meant to be opened directly, there is no software that could open and work with it directly, or there is no information available in public sources about opening this file type. This is usually the case of some internal data files, caches, temporary files etc.

How to convert file with extension GUP:

As far as we know, this .gup 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.

Related links: POPMail link

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