Most files with pi file extension are images in one of the older bitmap formats. Not very common.

There is one other file type using
the PI file extension!

empty icon.pi - iPi Pi calculation storage

Detailed description

Software that open pi file

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PI file extension - Bitmap image

What is pi file? How to open pi files?

File type specification:

Bitmap image file type icon Bitmap image file type

pi file icon: pi filetype icon

The pi file extension is used for several bitmap image formats. Mostly old bitmap formats and very rare used without support from developer.


  • Japan PI image
  • Blazing Paddles image


This pi 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.

The default software associated to open pi file:

XnView MP icon

Pierre-Emmanuel Gougelet logoXnView MP  Multiplatform software

Company or developer:
Pierre-Emmanuel Gougelet

A free (for non-commercial purposes) powerful cross-platform media browser, viewer and converter. Compatible with more than 500 formats and also supports export to 70 different file formats. It works on Windows, Linux and macOS (OS X).

Help how to open:

Xnview is able to open most, if not all *.pi images.

How to convert:

Use XnView to export *.pi files to other formats.

List of recommended software applications associated to the .pi file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open pi file, edit pi file, convert pi file, view pi file, play pi file etc. (if exist software for corresponding action in's database).

pi file viewer - programs that view pi file - Bitmap image

Programs supporting the exension pi on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about XnView MP for view pi file action.


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