File Extension Search

.voi File Extension

Developer: Voyetera/SPAMALIZE
File type: VOI Group File/Voyetra Voice File
You're here because you have a file that has a file extension ending in .voi. Files with the file extension .voi can only be launched by certain applications. It's possible that .voi files are data files rather than documents or media, which means they're not meant to be viewed at all.

what is a .voi file?

Files using the .voi extension are known as VOI Group Files or they are a Group of Volume of Interest drawings mainly used by the Brainmaker medical program. Other medical programs also make use of the .voi file extension as long as they deal with Volumes of interest. To save these .voi files, it makes use of BrainMaker’s component called the VOIGroup Manager. In this file type, users can open .voi files with the use of MatLAB. However, the .voi file extension is not only exclusively used by medical programs such as BrainMaker. It is also associated with the Voyetra music software. It is attached to sound clips that are used by the said music software. The only problem users experience with this .voi format as sound clip files is the fact that it is an outdated format which means that most of the audio programs commonly used by users do not support this sound clip format. Users won’t be able to open or play music with .voi file extension using other audio programs.

how to open a .voi file?

Launch a .voi file, or any other file on your PC, by double-clicking it. If your file associations are set up correctly, the application that's meant to open your .voi file will open it. It's possible you may need to download or purchase the correct application. It's also possible that you have the correct application on your PC, but .voi files aren't yet associated with it. In this case, when you try to open a .voi file, you can tell Windows which application is the correct one for that file. From then on, opening a  .voi file will open the correct application. Click here to fix .voi file association errors

applications that open a .voi file

VOI Tool utility

VOI Tool utility

VOI Tool Utility was developed in PET Lab Institute intended to analyze Volumes of Interest (VOIs). This application has set of predefined anatomical VOIs that corresponds to all Talairach Atlas Labels but can save any VOI as SPM compatible image used for masking. Statisticians may also use the saved signal intensity data extracted from a set of VOIs as plain ASCII text file, but saving and extracting signal intensity data as plain ASCII text file are only limited to PET/SPECT models. This software is developed by Microsoft under Windows 98 operating system and only tested with MATLAB 6.0 Release 12. It can be used in any MATLAB supported platform and uses only features incorporated in MATLAB 5.3. VOI Tool utility can be installed by unzipping the file and adding installation folder to MATLAB's search path and should contain one subfolder "AnatomicalVoi", set of .m files and one .mat ihb_VoiDfl.mat file.

a word of warning

Be careful not to rename the extension on .voi files, or any other files. This will not change the file type. Only special conversion software can change a file from one file type to another.

what is a file extension?

A file extension is the set of three or four characters at the end of a filename; in this case, .voi. File extensions tell you what type of file it is, and tell Windows what programs can open it. Windows often associates a default program to each file extension, so that when you double-click the file, the program launches automatically. When that program is no longer on your PC, you can sometimes get an error when you try to open the associated file.

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