Where to find very old historical data? (Daily HLOC)

I'm looking for historical data that goes way back, I want to papertrade my way through the 80s and 90s, just for fun!

High Low Open Close is all I need. And just the big indices would be fine too, FTSE, S&P, etc. Daily is fine, hourly would be nice too.

My trading provider has data for some markets back to the 1990s but there's no option to download it.

Thanks.