XSLT output as XHTML - html

Question

So I have an XML file validated by its DTD and now I have to make transformations with an XSLT that should output all the each user's page to an XHTML file. I was told that I should use a 'for-each' but well, how can I do so that I get as an output one file for each user? (each output file should be an XHTML file with the information a user, in total one file per user)
XML (sample):
<store>
<users>
<user id="user1">
<name username="user1">User 1</name>
<email>user1#email.com</email>
<birth birth_date=""></birth>
<mob_number>123</mob_number>
<address>Street1</address>
<picture></picture>
<basket></basket>
</user>
<user id="user2">
<name username="user2">User 2</name>
<email>user2#email.com</email>
<birth birth_date=""></birth>
<mob_number>123</mob_number>
<address>Street1</address>
<picture></picture>
<basket></basket>
</user>
<user id="user3">
<name username="user3">User 3</name>
<email>user3#email.com</email>
<birth birth_date=""></birth>
<mob_number>123</mob_number>
<address>Street1</address>
<picture></picture>
<basket></basket>
</user>
<user id="user4">
<name username="user4">User 4</name>
<email>user4#email.com</email>
<birth birth_date=""></birth>
<mob_number>123</mob_number>
<address>Street1</address>
<picture></picture>
<basket></basket>
</user>
</users>
</store>
Thank you

Answer 1

As #MartinHonnen noted, xsl:result-document is the way to go.
This answer outputs each user as a separate file named HTML_userX:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="2.0">
<xsl:strip-space elements="*" />
<xsl:template match="/store/users">
<xsl:for-each select="user">
<xsl:result-document href="{concat('HTML_',#id)}" method="xhtml">
<xsl:copy-of select="." />
</xsl:result-document>
</xsl:for-each>
</xsl:template>
</xsl:stylesheet>