I Mined 12 Months of My Own Google Voice History to Sell Leads. The First Version of My Report Would Have Cost Me the Deal.

I’m a Principal Engineer, and I run a junk removal and scrap metal business, Go Green Scrap Pros, on the side. Every lead comes in through a Google Voice number tied to the website. After a year of real volume, I wanted to sell overflow leads to another local business, but “trust me, I get a lot of calls” isn’t a pitch. I needed real numbers. So I pulled a Google Takeout export covering 12 months of that number’s history and built a pipeline to turn 2,200+ raw files into a report. The first version showed 423 leads. Handing that number to a buyer unvetted would have blown up the pitch the moment they asked me to walk through it. What Google Takeout Actually Gives You A Google Voice Takeout export isn’t a spreadsheet. It’s a directory of individual HTML artifacts, one per call or text, each a full standalone page carrying a fragment of the story: a machine-generated transcript, a timestamp, a phone number in the filename (+13035551234 - Voicemail - 2026-06-08T21_12_10Z.html). Across 12…