PEN File - opening and understanding

Did your computer fail to open a PEN file? We explain what they are used for and recommend software that we know can open or otherwise handle your .PEN files.

What is a PEN file?

A .PEN file is an Ultimate Writing and Creativity Center document file. Through our analysis of PEN files, we know that one use of the format is Ultimate Writing and Creativity Center document. We have not yet described in detail what these files contain and what they are used for, but our team is working tiredlessly through thousands of file formats. We'd love hearing from you if you have information about the format.

How to open PEN files

You will need a program compatible with the specific file you are trying to open, as different programs may use files with file extension PEN for different purposes.

While we have not verified the apps ourselves yet, our users have suggested 7 different PEN openers which you will find listed below.

Suggest another file format using extension PEN

While we know of one file format using the .PEN file extension, there may be more. It is widespread that different programs use files with the same file extension for very different types of data. Please let us know if you are aware of a different kind of .PEN file.

Various viewers for this file format

These apps are known to open certain types of PEN files. Remember, different programs may use PEN files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Borland Package LibraryBorland Package LibraryUser submitted
Ultimate Writing & Creativity CenterUltimate Writing & Creativity CenterUser submitted
PED-BasicPED-BasicUser submitted
CSProCSProUser submitted
io2 penio2 penUser submitted
Retirement Plan AnalyzerRetirement Plan AnalyzerUser submitted
Repro DeskRepro DeskUser submitted
We have not verified any software that we know for certain will work with PEN-files on Mac. If you know one, please use the 'Suggest a program' link below and tell us about it!
We have not verified any web services that we know for certain will work with PEN-files. If you know one, please use the 'Suggest a program' link below and tell us about it!