Okay there are a bunch of columns with a lot of info. How can I find out what these values all mean.
Some are obvious but others are not. Regardless, I would like to know if there is some kind of key to these logs and where I can get it.
Thanks.

There is a column heading for each column which defines the data. Don't you see those headings? In row 15. Which column heading don't you understand?
Date Time VDC DC Amps MPPT DC Pwr AC Pwr Eff VAC AC Wh HS Tmp Freq SAC Pwr SAC kWh

I have two inverters, so I have the extra data for System AC Power and System AC kWh. This is a total of my two inverters output.