(if not already):
If you see version info, you’re done.
To confirm that the installation was successful: How To Install Xmllint Windows
The easiest method is to download a standalone xmllint.exe and its dependencies from a trusted source. The most reliable pre-built package comes from the project (the official Windows port of libxml2). (if not already): If you see version info, you’re done
Close and reopen the terminal if needed. How To Install Xmllint Windows
xmllint --format myfile.xml
Chocolatey automatically downloads the pre-built binaries from the Zlatkovic source and adds them to PATH.