Converting .jpeg images to .icon format.
Converting JPEG Images directly to Icon Images (.jpeg to .icon conversion) should be possible using one of several icon editing tools capable of importing .jpeg images, such as Axialis WorkShop, Adobe Illustrator or IcoFX.
You will most likely be exporting your final icon image in the actual known .ico format.
Alternatively, you can try one of many available online graphics conversion tools.
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