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    <p>This solution does not need any CSV or XML libraries and, I know, it does not handle any illegal characters and encoding issues, but you might be interested in it as well, provided your CSV input does not break the above mentioned rules.</p> <p><strong>Attention:</strong> You should not use this code unless you know what you do or don't have the chance to use a further library (possible in some bureaucratic projects)... Use a StringBuffer for older Runtime Environments...</p> <p>So here we go:</p> <pre><code>BufferedReader reader = new BufferedReader(new InputStreamReader( Csv2Xml.class.getResourceAsStream("test.csv"))); StringBuilder xml = new StringBuilder(); String lineBreak = System.getProperty("line.separator"); String line = null; List&lt;String&gt; headers = new ArrayList&lt;String&gt;(); boolean isHeader = true; int count = 0; int entryCount = 1; xml.append("&lt;root&gt;"); xml.append(lineBreak); while ((line = reader.readLine()) != null) { StringTokenizer tokenizer = new StringTokenizer(line, ","); if (isHeader) { isHeader = false; while (tokenizer.hasMoreTokens()) { headers.add(tokenizer.nextToken()); } } else { count = 0; xml.append("\t&lt;entry id=\""); xml.append(entryCount); xml.append("\"&gt;"); xml.append(lineBreak); while (tokenizer.hasMoreTokens()) { xml.append("\t\t&lt;"); xml.append(headers.get(count)); xml.append("&gt;"); xml.append(tokenizer.nextToken()); xml.append("&lt;/"); xml.append(headers.get(count)); xml.append("&gt;"); xml.append(lineBreak); count++; } xml.append("\t&lt;/entry&gt;"); xml.append(lineBreak); entryCount++; } } xml.append("&lt;/root&gt;"); System.out.println(xml.toString()); </code></pre> <p>The input test.csv (stolen from another answer on this page):</p> <pre><code>string,float1,float2,integer hello world,1.0,3.3,4 goodbye world,1e9,-3.3,45 hello again,-1,23.33,456 hello world 3,1.40,34.83,4999 hello 2 world,9981.05,43.33,444 </code></pre> <p>The resulting output:</p> <pre><code>&lt;root&gt; &lt;entry id="1"&gt; &lt;string&gt;hello world&lt;/string&gt; &lt;float1&gt;1.0&lt;/float1&gt; &lt;float2&gt;3.3&lt;/float2&gt; &lt;integer&gt;4&lt;/integer&gt; &lt;/entry&gt; &lt;entry id="2"&gt; &lt;string&gt;goodbye world&lt;/string&gt; &lt;float1&gt;1e9&lt;/float1&gt; &lt;float2&gt;-3.3&lt;/float2&gt; &lt;integer&gt;45&lt;/integer&gt; &lt;/entry&gt; &lt;entry id="3"&gt; &lt;string&gt;hello again&lt;/string&gt; &lt;float1&gt;-1&lt;/float1&gt; &lt;float2&gt;23.33&lt;/float2&gt; &lt;integer&gt;456&lt;/integer&gt; &lt;/entry&gt; &lt;entry id="4"&gt; &lt;string&gt;hello world 3&lt;/string&gt; &lt;float1&gt;1.40&lt;/float1&gt; &lt;float2&gt;34.83&lt;/float2&gt; &lt;integer&gt;4999&lt;/integer&gt; &lt;/entry&gt; &lt;entry id="5"&gt; &lt;string&gt;hello 2 world&lt;/string&gt; &lt;float1&gt;9981.05&lt;/float1&gt; &lt;float2&gt;43.33&lt;/float2&gt; &lt;integer&gt;444&lt;/integer&gt; &lt;/entry&gt; &lt;/root&gt; </code></pre>
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