If you work with XML files—whether it’s parsing sitemaps, validating RSS feeds, or cleaning up messy data—you have probably heard of xmllint . It’s a powerful, fast command-line tool for checking and processing XML.
Otherwise, the manual method takes under three minutes and gives you full control. How To Install Xmllint Windows
Open or PowerShell as an administrator and run: If you work with XML files—whether it’s parsing