Is there a Magic Decoder Ring for County Tax Delinquency files?

[Duke George Brady]

Howdy all!  First post here, which I tried to avoid by searching through the forums, but failed to find another post that answered my inquiry (though I will continue searching!).

I've uploaded a County file of tax delinquent properties, and the header information is either cryptic or missing.  I've contacted the county and am waiting to hear back, but I get the feeling they don't help beyond a certain point, i.e. "you figure it out".

The file has the apn #s and name/address, etc., but there are many columns with years, and other random numbers that I want to understand.  Specifically, as you would imagine, I want to know the year(s) that a property had been or is delinquent, whether or not they've been redeemed in the past, by what amount, and the like.  The values in some cells hint at dollar amounts, but they're just floating there.  

Any insight to a good decryption source or what some of these mean would be greatly appreciated!  County of San Diego at the moment.

Cheers!  

D. Brady

Images of headers (highlighted) below:

[Sabrina Kane]

Try and open the file in Microsoft access it may be a data file and not formatted to be open as an excel or csv file