There are 2 file types use the .VOI file extension:
1. VOI Group File
Group of Volume of Interest (VOI) drawings used by the medical program BrainMaker; defines 3D regions of interest (ROIs) on MRI and PET brain scans; VOIs are saved as groups using the VOIGroup Manager, which is a component of BrainMaker.
MatLAB, a mathematics and scientific computing application, is commonly used to parse VOI files.
Updated: April 25, 2015
2. Voyetra Voice File
Sound clip used with Voyetra music software; obsolete audio format that may possibly be opened by WinDat, but is not supported by most audio programs.
Updated: August 21, 2007