I could see this being very useful. I uploaded a 70MB xls file to Sheets and Chrome says that tab is 600MB to 800MB of RAM. I ran a Find operation and that spik

I could see this being very useful. I uploaded a 70MB xls file to Sheets and Chrome says that tab is 600MB to 800MB of RAM. I ran a Find operation and that spiked up to 1.2GB of RAM. How 70MB of data turns into over 1GB of RAM is beyond me.