The exchange rates file was named rates.xml, and when we look at its contents in an editor, it consists of a number of <item> XML tags, each containing an exchange rate, such as this:
<item> <title>1 USD = 0.81191502 EUR</title> <link>http://www.floatrates.com/usd/eur/</link> <description>1 U.S. Dollar = 0.81191502 Euro</description> <pubDate>Fri, 23 Mar 2018 00:00:01 GMT</pubDate> <baseCurrency>USD</baseCurrency> <baseName>U.S. Dollar</baseName> <targetCurrency>EUR</targetCurrency> <targetName>Euro</targetName> <exchangeRate>0.81191502</exchangeRate></item><item> <title>1 USD = 0.70675954 GBP</title> ...</item>
We see that this contains all the information we need; in fact, only <title> is enough. ...
