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Harvard custom palette
File type: Graphics file
A pc3 file extension is related to the Harvard Graphics ChartXL and used for its custom palette files.
Found 3 different file type records with the same pc3 filename suffix.
File type category:
Graphics file
Date updated: May 14, 2018
Record marked as obsolete and not updated for a long time.
The pc3 file extension is associated with applications like Harvard Graphics ChartXL, a data organization and analysis tool for Microsoft Windows operating system.
The pc3 file stores Harvard Custom Palette (Harvard Graphics now Serif).
Use Harvard Graphics ChartXL to work with *.pc3 files.
Probably cannot be converted to other formats.
Software applications that handle other tasks involving pc3 files:
Microsoft Windows
File type category:
Bitmap image file
Date updated: June 23, 2025
Record marked as obsolete and not updated for a long time.
The pc3 file extension was also used for a special bitmap image format for Atari Degas & Degas Elite graphics editing tools for ATARI TOS operating system (Atari ST, Atari Falcon computers).
The pc3 file stores bitmap image (640x400, mono).
No longer actively used format.
You can still open this file format using XnView image viewer.
XnView is able to export *.pc3 files to other formats.
File type category:
Configuration file
Date updated: May 7, 2019
The pc3 file extension is also related to Autodesk AutoCAD, a CAD and CAM software for Microsoft Windows and Apple Mac OS X systems. and used for one of its default configuration files.
These pc3 files contain plotter or printer configuration data.
Probably not meant to be accessed by the user.
Probably cannot be converted to anything else.
Software apps that manage or store settings in pc3 files:
Microsoft Windows
Apple macOS / Mac OS X
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