PSI File - opening and understanding

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

What is a PSI file?

A .PSI file is a PCE Sector Image disk image file. Through our analysis of PSI files, we know that one use of the format is PCE Sector Image disk image. 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 PSI 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 PSI for different purposes.

While we have not verified the apps ourselves yet, our users have suggested 4 different PSI openers which you will find listed below.

Other file formats using extension .PSI

While PCE Sector Image disk image is a popular type of PSI-file, we know of 2 different uses of the .PSI extension.

The PSI file extension indicates to your device which app can open the file. However, different apps may use the same file extension for different types of data. So a PSI opener may not be able to open all kinds of PSI files. In this case, look through both formats to make sure you find the best suited PSI viewer.

Psion Serie 5/EPOC Word document

Through our analysis of PSI files, we know that one use of the format is Psion Serie 5/EPOC Word 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.

While we have not verified the apps ourselves yet, our users have suggested 4 different PSI openers which you will find listed below.

Various viewers for this file format

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

PlanSwift ProfessionalPlanSwift ProfessionalUser submitted
PrintStream ViewerPrintStream ViewerUser submitted
TatukGIS ViewerTatukGIS ViewerUser submitted
Pierresoft AdesignPierresoft AdesignUser submitted
We have not verified any software that we know for certain will work with PSI-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 PSI-files. If you know one, please use the 'Suggest a program' link below and tell us about it!