Solidify Your Knowledge With A “Wide” Spreadsheet Import (Builtwith)
If you ever pull a list from builtwith.com, you’ll see that it has about a million columns in it, of many different data types.
If you want to solidify your knowledge, you can play with the example Builtwith export sheet I dropped into the resources on this page, to experiment with different column types.
You can also create a free account at builtwith.com to export your own sample lists of ~100 records for free.
(If you haven’t played with Builtwith before, I’d highly recommend it as a learning project, because you can do a lot of cool stuff on there, e.g. what I did on this sample leads list of “All live shopify sites with revenue over $1m/yr”)