Xcursor is a format for the graphics of the cursor in X11 (file reports X11 cursor).
xcursorgen allows you to convert PNG files and some metadata to Xcursor files.
How do I convert an Xcursor file to PNG images?
Imagemagick's convert unfortunately returns:
no decode delegate for this image format
Use xcur2png.
Xcur2png takes PNG images from Xcursor-file, and generate config-file which is reusable by xcursorgen. To put it simply, it is converter from X cursor to PNG image.
Basic usage
xcur2png cursorfile Converting all cursor files of a theme
find . ! -name '*.*' -type f -exec xcur2png {} \; Availability
There are only inofficial packages for Arch Linux and Ubuntu (64bit) but the app is hassle-free to compile.
This answer would not have been possible without don_crissti pointing out the tool.
Now, some dependencies for xcur2png aren't available, at least on my Ubuntu24.04. However, I've found this C++ project that you can build and run yourself, you can export the whole folder of x11 cursors into pngs in one go. Also, it provides an option to just view the cursor icons.
Also, GIMP can open X11 cursor files, even animated ones.
