Extracting textual content from XML documenst using XSLT

How it is possible to extract textual content of an XML document preferably using XSLT.

For such fragment,


<record>
    <tag1>textual content</tag1>
    <tag2>textual content</tag2>
    <tag2>textual content</tag2>
</record>

the desired result is :

textual content, textual content, textual content

What's the best format for output (table, CSV, etc,) in which the content be processable for further operation, such as text mining?

Thanks