[CQ-Contest] Spreadsheet guru?

[K0HB]

I thought about extracting all the calls from my SS log and sending them a "thank you" email via arrl.net (yeah, I know not everyone would get it).  After sending a few dozen 'manually' I decided it's too tedious, so am wondering if such a project is feasible by a .csv export from the log, then import to a spreadsheet, then some macro to build an address list like his-callsign at arrl.net from the callsign column?

Anyone have some thoughts?

73, de Hans, K0HB
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