With some graphics editing programs it is possible to extract individual icons to JPG format.
Convert Icon image file to JPEG bitmap image format.
We have found 4 software records in our database eligible for .icon to .jpg file format conversion.
Microsoft Windows software - convert icon to jpg on Windows
A tool used to create icons, cursors and icon libraries for Windows
Convert from icon file format
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned icon to jpg. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
A free graphics and photo editor and authoring tool
Apple macOS / Mac OS X software - convert icon to jpg on OS X
Mac version of the popular graphics editor
Linux/Unix software - convert icon to jpg on Linux
GNU Image Manipulation Program