diff --git a/src/PhpSpreadsheet/Reader/Xml.php b/src/PhpSpreadsheet/Reader/Xml.php
index 11aa1df3bd..452ec13564 100644
--- a/src/PhpSpreadsheet/Reader/Xml.php
+++ b/src/PhpSpreadsheet/Reader/Xml.php
@@ -324,6 +324,8 @@ public function loadIntoExisting($pFilename, Spreadsheet $spreadsheet)
         $xml = $this->trySimpleXMLLoadString($pFilename);
 
         $namespaces = $xml->getNamespaces(true);
+        $namespacesDoc = $xml->getDocNamespaces(true);
+        $namespaces = array_merge($namespaces, $namespacesDoc);
 
         $docProps = $spreadsheet->getProperties();
         if (isset($xml->DocumentProperties[0])) {
diff --git a/tests/PhpSpreadsheetTests/Reader/Xml/XmlTest.php b/tests/PhpSpreadsheetTests/Reader/Xml/XmlTest.php
index 2b66c7b430..b28855548f 100644
--- a/tests/PhpSpreadsheetTests/Reader/Xml/XmlTest.php
+++ b/tests/PhpSpreadsheetTests/Reader/Xml/XmlTest.php
@@ -47,4 +47,18 @@ public function testHyperlinksAltCharset(): void
         self::assertEquals('PhpSpreadsheet', $hyperlink->getValue());
         self::assertEquals('https://phpspreadsheet.readthedocs.io', $hyperlink->getHyperlink()->getUrl());
     }
+
+    /**
+     * Check if it can read XML if some namespaces are defined in root node but never used.
+     */
+    public function testNoNamespaceError(): void
+    {
+        $reader = new Xml();
+        $spreadsheet = $reader->load('tests/data/Reader/Xml/ReadNamespacesNeverUsed.xml');
+        $spreadsheet->setActiveSheetIndex(0);
+        self::assertEquals('First Column', $spreadsheet->getActiveSheet()->getCell('A1')->getValue());
+        self::assertNull($spreadsheet->getActiveSheet()->getCell('A2')->getValue());
+        self::assertEquals('Second Column', $spreadsheet->getActiveSheet()->getCell('B1')->getValue());
+        self::assertEquals('Third Column', $spreadsheet->getActiveSheet()->getCell('C1')->getValue());
+    }
 }
diff --git a/tests/data/Reader/Xml/ReadNamespacesNeverUsed.xml b/tests/data/Reader/Xml/ReadNamespacesNeverUsed.xml
new file mode 100644
index 0000000000..802a018ba5
--- /dev/null
+++ b/tests/data/Reader/Xml/ReadNamespacesNeverUsed.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<?mso-application progid="Excel.Sheet"?>
+<Workbook xmlns="urn:schemas-microsoft-com:office:spreadsheet" xmlns:x="urn:schemas-microsoft-com:office:excel"
+          xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet" xmlns:html="http://www.w3.org/TR/REC-html40">
+    <Styles>
+        <Style ss:ID="sDT">
+            <NumberFormat ss:Format="Short Date"/>
+        </Style>
+    </Styles>
+    <Worksheet ss:Name="Sheet1">
+        <Table>
+            <Row>
+                <Cell>
+                    <Data ss:Type="String">First Column</Data>
+                </Cell>
+                <Cell>
+                    <Data ss:Type="String">Second Column</Data>
+                </Cell>
+                <Cell>
+                    <Data ss:Type="String">Third Column</Data>
+                </Cell>
+            </Row>
+        </Table>
+    </Worksheet>
+</Workbook>
\ No newline at end of file