25 KB XML sample file

An XML file of exactly 25,600 bytes. It is a valid Extensible Markup Language file, generated for this site and checked with an independent parser.

sample-xml-25kb.xml

25 KB25,600 bytes

Download 25 KB XML

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Type: application/xml
SHA-256: bbfea291840af76a807b12f8eb82b9ff45f66493d48afcf1f2a75ab2d4c3f482
Direct URL: https://sampletestfiles.com/downloads/xml/sample-xml-25kb.xml

What is in this file

A <customers> root element holding 80 fictional records that mix child elements, attributes and an empty element. An XML comment before the closing tag brings the file to the exact size.

Elements	80 <customer> records
Root element	<customers>
Declaration	XML 1.0, UTF-8
Encoding	UTF-8 (ASCII characters only)
Line endings	LF

How the file begins

The opening lines of sample-xml-25kb.xml, exactly as they appear in the file.

<?xml version="1.0" encoding="UTF-8"?>
<customers generator="SampleTestFiles" description="Sample XML file (25 KB) for testing">
  <customer id="1" active="true">
    <name><first>Ethan</first><last>Zeller</last></name>
    <email>ethan.zeller1@example.com</email>
    <address city="Pune" country="IN"/>
    <signup>2021-07-10</signup>
    <balance currency="USD">2769.84</balance>
    <note>Billing contact changed recently</note>
  </customer>
  <customer id="2" active="true">
    <name><first>Elena</first><last>Underhill</last></name>
    <email>elena.underhill2@example.net</email>
    <address city="Porto Alegre" country="BR"/>

Preview

Shows the file contents.

Where 25 KB matters

A 25,600-byte file: the size of a small web image or a short document. These are the default limits a file of this size is useful for testing:

System	Limit	Note
TCP initial congestion window	About 14.6 KB (10 segments)	25 KB needs at least two flights of packets on a new connection.
Base64 encoding	Adds 33 percent	A 25 KB file becomes about 34 KB inside JSON or an email.

All 25 KB sample files

Use this file for

Testing avatar and logo uploads
Testing XML parsers and data import
Checking protection against entity attacks

Testing notes for XML

Parsers that resolve external entities can be made to read local files or call internal services, an attack called XXE. Disable DTD processing for untrusted input.
Nested entity definitions can expand exponentially ("billion laughs"). The samples here declare no entities.

XML format reference

Technical details

File name	sample-xml-25kb.xml
Format	XML (Extensible Markup Language)
Extension	.xml
MIME type	application/xml
Size	25,600 bytes (25 KB)
Kind	Text
Signature	3C 3F 78 6D 6C
SHA-256	bbfea291840af76a807b12f8eb82b9ff45f66493d48afcf1f2a75ab2d4c3f482
Created	2026-10-10
Validation	Exact size, signature bytes and structure checked when the file was generated
Preview	Available on this page
Source	Generated for this site; not copied from elsewhere
Licence	Free to use, modify and redistribute (terms)
Category	Data

Validated for expected format and integrity. As with any download, scan the file with your own security tools before opening it. How files are made and checked

Download from the command line and verify

Fetch the file with curl, then compare its checksum with the SHA-256 value above.

curl -o sample-xml-25kb.xml 'https://sampletestfiles.com/downloads/xml/sample-xml-25kb.xml'
sha256sum sample-xml-25kb.xml     # Linux
shasum -a 256 sample-xml-25kb.xml # macOS

On Windows, run Get-FileHash sample-xml-25kb.xml -Algorithm SHA256 in PowerShell. A matching value proves that the download is complete and unaltered.

Related files

Questions about this file

Is this file exactly 25 KB?: Yes. It is 25,600 bytes, which is 25 KB in the binary units that operating systems and server limits use (1 KB = 1,024 bytes).
What is inside the 25 KB XML file?: A <customers> root element holding 80 fictional records that mix child elements, attributes and an empty element. An XML comment before the closing tag brings the file to the exact size.
Do the XML samples use a DTD or entities?: No. They have an XML declaration and no DOCTYPE, so they are safe for parsers with DTD processing disabled.

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