Thankfully, there is an easy way to render a high-resolution PNG image file with a transparent background for any icon on your Mac. And once you find what you are looking for, it’s a darn jpeg that would leave an unsightly white background anywhere you put it.
Or perhaps you needed a high res image of the Excel emblem for a tattoo to prove how much you love Microsoft.
Have you ever searched online for an application icon? Maybe you wanted to add the Zoom logo to a Keynote presentation on videoconferencing.