This feed contains historical market activity data, not sale data, so you will only see bids and asks. The bid/ask spreads are very low, so you can average them to get the close price.
For more helpful information, see the below from investopedia:
History is available at the 1min (M1), 5min (M5), 15min (M15), 30min (M30), 1hour (H1), 2hour (H2), 3hour (H3), 4hour (H4), 6hour (H6), 8hour (H8), 1day (D1), 1week (W1), and 1month (M1) levels.
History is available back to the beginning of 2000 for all currency pairs.
AUD/CAD, AUD/CHF, AUD/JPY, AUD/NZD, AUD/USD
CAD/CHF, CAD/JPY, CHF/JPY, EUR/AUD, EUD/CAD
EUR/CHF, EUR/GBP, EUR/JPY, EUR/NOK, EUR/NZD
EUR/SEK, EUR/TRY, EUR/USD, GBP/AUD, GBP/CAD
GBP/CHF, GBP/JPY, GBP/NZD, GBP/USD, NZD/CAD
NZD/CHF, NZD/JPY, NZD/USD, TRY/JPY, USD/CAD
USD/CHF, USD/CNH, USD/JPY, USD/MXN, USD/NOK
USD/SEK, USD/TRY, USD/ZAR, ZAR/JPY