Answer
The PhotoImage class in Tkinter supports the following image formats:
* GIF
* PGM (Portable Graymap)
* PPM (Portable Pixmap)
Work Step by Step
It's important to note that the support for these formats may depend on the version of Tkinter and the Tcl/Tk libraries that are being used. It's also possible that some platforms may not support all of these formats, so it's recommended to stick to the widely supported GIF format for maximum compatibility.
