PerfMon "Data Collector" Vs. "Save Settings"/html

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http://serverfault.com – Perfmon seems to have two ways to capture / log its findings. One is to use a "data collector," and the other is to open a context menu and "Save Settings As" which produces an html file. Could someone explain what scenario(s) inspire the two different means of capturing data? I mean, I've noticed that data collectors can be stored as CSV, binary, SQL, etc. That unto itself makes a data collector very useful. But then why have the html format? I want to use the tool as expertly as possible, so I'm trying to understand the subtleties of its recording capabilities. (HowTos)