HPI

Hemera Photo Image format
File type: Bitmap image file
A hpi file extension is associated with the Hemera Photo Image format an old graphics file format used by Hemera Photo Objects.
Found 5 different file type records with the same hpi filename suffix.
What is hpi file?
File type category:
Bitmap image file
Date updated: June 23, 2025
The hpi file extension is used for an photo image format used by Hemera. Most likely some very old graphics file format and no longer used and supported.
Images was sold by Hemera, under the product name Hemera Photo Objects.
Hemera has stated a preference to not include the proprietary HPI file format in third-party applications.
Any hpi file consists of a fixed 32-byte header which resembles the header used in PNG (Portable Network Graphics) files. Following this header, the color image information is presented in JPEG format.
Following the main image, the grayscale mask information is presented in PNG format.
This achieves good compression on the image data, and excellent compression on the grayscale mask data which is usually dominated by pure white and pure black pixels.
How to open hpi file?
You can open *.hpi files with XnView.
How to convert hpi file?
Use XnView to export *.hpi files to other formats.
Suggested software to open hpi file:
Associated software actions with the hpi file
Programs for viewing hpi files:
XnView MP (Multiplatform)
Software apps that convert hpi files:
XnView MP (Multiplatform)
Software apps that print hpi files:
XnView MP (Multiplatform)
C64 Art Studio image
File type category:
Bitmap image file
Date updated: June 23, 2025
The hpi file extension is related to the C64 Art Studio, a picture image editing program developed for Commodore C64 8-bit computers.
The hpi file contains picture image from Art Studio.
How to open hpi file?
Use XnView to open *.hpi files.
How to convert hpi file?
XnView is able to export *.hpi files to other formats.
Suggested software to open hpi file:
Associated software actions with the hpi file
Programs for viewing hpi files:
XnView MP (Multiplatform)
Software apps that print hpi files:
XnView MP (Multiplatform)
Jenkins plugin
File type category:
Plugin, addon file
Date updated: September 14, 2017
The hpi file extension is related to the Jenkins, an open source automation server written for Java platform that allows users to test virtually any software projects.
The hpi file contains plugin that adds new features to Jenkins.
Suggested software to open hpi file:
Associated software actions with the hpi file
Software applications that handle other tasks involving hpi files:
Jenkins (Multiplatform)
Spring HAPI compressed data
File type category:
Game file
Date updated: September 2, 2016
The hpi file extension is associated with the Spring, a free RTS engine for Microsoft Windows, Apple Mac and Linux platforms.
The hpi file contains HAPI compressed data used by Spring.
Suggested software to open hpi file:
Associated software actions with the hpi file
Software applications that handle other tasks involving hpi files:
Spring Engine (Multiplatform)
Total Annihilation game archive
File type category:
Archive and compressed file
Game file
Date updated: July 11, 2024
The hpi file extension is related to the Total Annihilation, a real-time strategic video game for Microsoft Windows.
Game archive contains game files (maps, graphics, music, sounds, textures) for Total Annihilation.
How to open hpi file?
Use Dragon Unpacker to work with *.hpi files.
How to convert hpi file?
These games files cannot be converted to anything else. However, sometimes modding.
Suggested software to open hpi file:
Associated software actions with the hpi file
Software applications that can open hpi files:
Dragon UnPACKer (Microsoft Windows)
Software apps that extract hpi files:
Dragon UnPACKer (Microsoft Windows)
Software applications that handle other tasks involving hpi files:
Total Annihilation (Microsoft Windows)