You can say "I'm glad to have helped" "I'm happy to help you" "I'm happy to help" It's neutral, but leaning a bit to informal In a more formal environment you can say "I'm glad to help you" or the hardcoreformal "I'm glad to have helped you" I am more than happy to help you is perfectly fine in either situationYou just made me very happy today!As a rough guide, here's how you can recognize when to use which be happy with = be satisfied with something you possess or have experienced be happy about = be pleased by;
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