How to add XDC Network mainnet to MetaMask?

Inquiring minds want to know: Could you please provide a step-by-step guide on how to successfully add the XDC Network mainnet to MetaMask? As a cryptocurrency enthusiast and frequent user of decentralized applications, I'm eager to expand my wallet's capabilities to include this emerging blockchain network. The process, I understand, involves customizing the network settings within MetaMask to match those of the XDC Network. However, the precise steps and any potential caveats are still unclear to me. Could you clarify the necessary configurations and offer any advice to ensure a smooth integration? Thank you for your assistance in navigating this process.