diff --git a/src/PhpSpreadsheet/Document/Properties.php b/src/PhpSpreadsheet/Document/Properties.php
index 162e818036..302afee79e 100644
--- a/src/PhpSpreadsheet/Document/Properties.php
+++ b/src/PhpSpreadsheet/Document/Properties.php
@@ -107,6 +107,8 @@ class Properties
      */
     private $customProperties = [];
 
+    private string $hyperlinkBase = '';
+
     /**
      * Create a new Document Properties instance.
      */
@@ -534,4 +536,16 @@ public static function convertPropertyType(string $propertyType): string
     {
         return self::PROPERTY_TYPE_ARRAY[$propertyType] ?? self::PROPERTY_TYPE_UNKNOWN;
     }
+
+    public function getHyperlinkBase(): string
+    {
+        return $this->hyperlinkBase;
+    }
+
+    public function setHyperlinkBase(string $hyperlinkBase): self
+    {
+        $this->hyperlinkBase = $hyperlinkBase;
+
+        return $this;
+    }
 }
diff --git a/src/PhpSpreadsheet/Reader/Html.php b/src/PhpSpreadsheet/Reader/Html.php
index 377a8add06..fa3db908ef 100644
--- a/src/PhpSpreadsheet/Reader/Html.php
+++ b/src/PhpSpreadsheet/Reader/Html.php
@@ -8,6 +8,7 @@
 use DOMText;
 use PhpOffice\PhpSpreadsheet\Cell\Coordinate;
 use PhpOffice\PhpSpreadsheet\Cell\DataType;
+use PhpOffice\PhpSpreadsheet\Document\Properties;
 use PhpOffice\PhpSpreadsheet\Helper\Dimension as CssDimension;
 use PhpOffice\PhpSpreadsheet\Reader\Security\XmlScanner;
 use PhpOffice\PhpSpreadsheet\Spreadsheet;
@@ -685,10 +686,94 @@ public function loadIntoExisting($filename, Spreadsheet $spreadsheet)
         if ($loaded === false) {
             throw new Exception('Failed to load ' . $filename . ' as a DOM Document', 0, $e ?? null);
         }
+        self::loadProperties($dom, $spreadsheet);
 
         return $this->loadDocument($dom, $spreadsheet);
     }
 
+    private static function loadProperties(DOMDocument $dom, Spreadsheet $spreadsheet): void
+    {
+        $properties = $spreadsheet->getProperties();
+        foreach ($dom->getElementsByTagName('meta') as $meta) {
+            $metaContent = (string) $meta->getAttribute('content');
+            if ($metaContent !== '') {
+                $metaName = (string) $meta->getAttribute('name');
+                switch ($metaName) {
+                    case 'author':
+                        $properties->setCreator($metaContent);
+
+                        break;
+                    case 'category':
+                        $properties->setCategory($metaContent);
+
+                        break;
+                    case 'company':
+                        $properties->setCompany($metaContent);
+
+                        break;
+                    case 'created':
+                        $properties->setCreated($metaContent);
+
+                        break;
+                    case 'description':
+                        $properties->setDescription($metaContent);
+
+                        break;
+                    case 'keywords':
+                        $properties->setKeywords($metaContent);
+
+                        break;
+                    case 'lastModifiedBy':
+                        $properties->setLastModifiedBy($metaContent);
+
+                        break;
+                    case 'manager':
+                        $properties->setManager($metaContent);
+
+                        break;
+                    case 'modified':
+                        $properties->setModified($metaContent);
+
+                        break;
+                    case 'subject':
+                        $properties->setSubject($metaContent);
+
+                        break;
+                    case 'title':
+                        $properties->setTitle($metaContent);
+
+                        break;
+                    default:
+                        if (preg_match('/^custom[.](bool|date|float|int|string)[.](.+)$/', $metaName, $matches) === 1) {
+                            switch ($matches[1]) {
+                                case 'bool':
+                                    $properties->setCustomProperty($matches[2], (bool) $metaContent, Properties::PROPERTY_TYPE_BOOLEAN);
+
+                                    break;
+                                case 'float':
+                                    $properties->setCustomProperty($matches[2], (float) $metaContent, Properties::PROPERTY_TYPE_FLOAT);
+
+                                    break;
+                                case 'int':
+                                    $properties->setCustomProperty($matches[2], (int) $metaContent, Properties::PROPERTY_TYPE_INTEGER);
+
+                                    break;
+                                case 'date':
+                                    $properties->setCustomProperty($matches[2], $metaContent, Properties::PROPERTY_TYPE_DATE);
+
+                                    break;
+                                default: // string
+                                    $properties->setCustomProperty($matches[2], $metaContent, Properties::PROPERTY_TYPE_STRING);
+                            }
+                        }
+                }
+            }
+        }
+        if (!empty($dom->baseURI)) {
+            $properties->setHyperlinkBase($dom->baseURI);
+        }
+    }
+
     private static function replaceNonAscii(array $matches): string
     {
         return '&#' . mb_ord($matches[0], 'UTF-8') . ';';
@@ -719,8 +804,10 @@ public function loadFromString($content, ?Spreadsheet $spreadsheet = null): Spre
         if ($loaded === false) {
             throw new Exception('Failed to load content as a DOM Document', 0, $e ?? null);
         }
+        $spreadsheet = $spreadsheet ?? new Spreadsheet();
+        self::loadProperties($dom, $spreadsheet);
 
-        return $this->loadDocument($dom, $spreadsheet ?? new Spreadsheet());
+        return $this->loadDocument($dom, $spreadsheet);
     }
 
     /**
diff --git a/src/PhpSpreadsheet/Reader/Xlsx/Properties.php b/src/PhpSpreadsheet/Reader/Xlsx/Properties.php
index 72addffd5b..0d4701afac 100644
--- a/src/PhpSpreadsheet/Reader/Xlsx/Properties.php
+++ b/src/PhpSpreadsheet/Reader/Xlsx/Properties.php
@@ -73,6 +73,9 @@ public function readExtendedProperties(string $propertyData): void
             if (isset($xmlCore->Manager)) {
                 $this->docProps->setManager((string) $xmlCore->Manager);
             }
+            if (isset($xmlCore->HyperlinkBase)) {
+                $this->docProps->setHyperlinkBase((string) $xmlCore->HyperlinkBase);
+            }
         }
     }
 
diff --git a/src/PhpSpreadsheet/Reader/Xml/Properties.php b/src/PhpSpreadsheet/Reader/Xml/Properties.php
index f0346ed02f..e216c254da 100644
--- a/src/PhpSpreadsheet/Reader/Xml/Properties.php
+++ b/src/PhpSpreadsheet/Reader/Xml/Properties.php
@@ -92,6 +92,10 @@ protected function processStandardProperty(
             case 'Manager':
                 $docProps->setManager($stringValue);
 
+                break;
+            case 'HyperlinkBase':
+                $docProps->setHyperlinkBase($stringValue);
+
                 break;
             case 'Keywords':
                 $docProps->setKeywords($stringValue);
@@ -110,17 +114,10 @@ protected function processCustomProperty(
         ?SimpleXMLElement $propertyValue,
         SimpleXMLElement $propertyAttributes
     ): void {
-        $propertyType = DocumentProperties::PROPERTY_TYPE_UNKNOWN;
-
         switch ((string) $propertyAttributes) {
-            case 'string':
-                $propertyType = DocumentProperties::PROPERTY_TYPE_STRING;
-                $propertyValue = trim((string) $propertyValue);
-
-                break;
             case 'boolean':
                 $propertyType = DocumentProperties::PROPERTY_TYPE_BOOLEAN;
-                $propertyValue = (bool) $propertyValue;
+                $propertyValue = (bool) (string) $propertyValue;
 
                 break;
             case 'integer':
@@ -134,9 +131,15 @@ protected function processCustomProperty(
 
                 break;
             case 'dateTime.tz':
+            case 'dateTime.iso8601tz':
                 $propertyType = DocumentProperties::PROPERTY_TYPE_DATE;
                 $propertyValue = trim((string) $propertyValue);
 
+                break;
+            default:
+                $propertyType = DocumentProperties::PROPERTY_TYPE_STRING;
+                $propertyValue = trim((string) $propertyValue);
+
                 break;
         }
 
diff --git a/src/PhpSpreadsheet/Writer/Html.php b/src/PhpSpreadsheet/Writer/Html.php
index 575197aecb..842998f9eb 100644
--- a/src/PhpSpreadsheet/Writer/Html.php
+++ b/src/PhpSpreadsheet/Writer/Html.php
@@ -7,9 +7,11 @@
 use PhpOffice\PhpSpreadsheet\Cell\Cell;
 use PhpOffice\PhpSpreadsheet\Cell\Coordinate;
 use PhpOffice\PhpSpreadsheet\Chart\Chart;
+use PhpOffice\PhpSpreadsheet\Document\Properties;
 use PhpOffice\PhpSpreadsheet\RichText\RichText;
 use PhpOffice\PhpSpreadsheet\RichText\Run;
 use PhpOffice\PhpSpreadsheet\Settings;
+use PhpOffice\PhpSpreadsheet\Shared\Date;
 use PhpOffice\PhpSpreadsheet\Shared\Drawing as SharedDrawing;
 use PhpOffice\PhpSpreadsheet\Shared\File;
 use PhpOffice\PhpSpreadsheet\Shared\Font as SharedFont;
@@ -342,13 +344,21 @@ public function writeAllSheets()
 
     private static function generateMeta(?string $val, string $desc): string
     {
-        return $val
+        return ($val || $val === '0')
             ? ('      <meta name="' . $desc . '" content="' . htmlspecialchars($val, Settings::htmlEntityFlags()) . '" />' . PHP_EOL)
             : '';
     }
 
     public const BODY_LINE = '  <body>' . PHP_EOL;
 
+    private const CUSTOM_TO_META = [
+        Properties::PROPERTY_TYPE_BOOLEAN => 'bool',
+        Properties::PROPERTY_TYPE_DATE => 'date',
+        Properties::PROPERTY_TYPE_FLOAT => 'float',
+        Properties::PROPERTY_TYPE_INTEGER => 'int',
+        Properties::PROPERTY_TYPE_STRING => 'string',
+    ];
+
     /**
      * Generate HTML header.
      *
@@ -374,6 +384,36 @@ public function generateHTMLHeader($includeStyles = false)
         $html .= self::generateMeta($properties->getCategory(), 'category');
         $html .= self::generateMeta($properties->getCompany(), 'company');
         $html .= self::generateMeta($properties->getManager(), 'manager');
+        $html .= self::generateMeta($properties->getLastModifiedBy(), 'lastModifiedBy');
+        $date = Date::dateTimeFromTimestamp((string) $properties->getCreated());
+        $date->setTimeZone(Date::getDefaultOrLocalTimeZone());
+        $html .= self::generateMeta($date->format(DATE_W3C), 'created');
+        $date = Date::dateTimeFromTimestamp((string) $properties->getModified());
+        $date->setTimeZone(Date::getDefaultOrLocalTimeZone());
+        $html .= self::generateMeta($date->format(DATE_W3C), 'modified');
+
+        $customProperties = $properties->getCustomProperties();
+        foreach ($customProperties as $customProperty) {
+            $propertyValue = $properties->getCustomPropertyValue($customProperty);
+            $propertyType = $properties->getCustomPropertyType($customProperty);
+            $propertyQualifier = self::CUSTOM_TO_META[$propertyType] ?? null;
+            if ($propertyQualifier !== null) {
+                if ($propertyType === Properties::PROPERTY_TYPE_BOOLEAN) {
+                    $propertyValue = $propertyValue ? '1' : '0';
+                } elseif ($propertyType === Properties::PROPERTY_TYPE_DATE) {
+                    $date = Date::dateTimeFromTimestamp((string) $propertyValue);
+                    $date->setTimeZone(Date::getDefaultOrLocalTimeZone());
+                    $propertyValue = $date->format(DATE_W3C);
+                } else {
+                    $propertyValue = (string) $propertyValue;
+                }
+                $html .= self::generateMeta($propertyValue, "custom.$propertyQualifier.$customProperty");
+            }
+        }
+
+        if (!empty($properties->getHyperlinkBase())) {
+            $html .= '      <base href="' . $properties->getHyperlinkBase() . '" />' . PHP_EOL;
+        }
 
         $html .= $includeStyles ? $this->generateStyles(true) : $this->generatePageDeclarations(true);
 
diff --git a/src/PhpSpreadsheet/Writer/Xls/Worksheet.php b/src/PhpSpreadsheet/Writer/Xls/Worksheet.php
index 9f23bd365e..aeedd08e77 100644
--- a/src/PhpSpreadsheet/Writer/Xls/Worksheet.php
+++ b/src/PhpSpreadsheet/Writer/Xls/Worksheet.php
@@ -503,6 +503,8 @@ public function close(): void
         $this->writeMergedCells();
 
         // Hyperlinks
+        $phpParent = $phpSheet->getParent();
+        $hyperlinkbase = ($phpParent === null) ? '' : $phpParent->getProperties()->getHyperlinkBase();
         foreach ($phpSheet->getHyperLinkCollection() as $coordinate => $hyperlink) {
             [$column, $row] = Coordinate::indexesFromString($coordinate);
 
@@ -513,6 +515,11 @@ public function close(): void
                 $url = str_replace('sheet://', 'internal:', $url);
             } elseif (preg_match('/^(http:|https:|ftp:|mailto:)/', $url)) {
                 // URL
+            } elseif (!empty($hyperlinkbase) && preg_match('~^([A-Za-z]:)?[/\\\\]~', $url) !== 1) {
+                $url = "$hyperlinkbase$url";
+                if (preg_match('/^(http:|https:|ftp:|mailto:)/', $url) !== 1) {
+                    $url = 'external:' . $url;
+                }
             } else {
                 // external (local file)
                 $url = 'external:' . $url;
diff --git a/src/PhpSpreadsheet/Writer/Xlsx/DocProps.php b/src/PhpSpreadsheet/Writer/Xlsx/DocProps.php
index 8902826a19..8c33f59326 100644
--- a/src/PhpSpreadsheet/Writer/Xlsx/DocProps.php
+++ b/src/PhpSpreadsheet/Writer/Xlsx/DocProps.php
@@ -93,6 +93,9 @@ public function writeDocPropsApp(Spreadsheet $spreadsheet)
         // SharedDoc
         $objWriter->writeElement('SharedDoc', 'false');
 
+        // HyperlinkBase
+        $objWriter->writeElement('HyperlinkBase', $spreadsheet->getProperties()->getHyperlinkBase());
+
         // HyperlinksChanged
         $objWriter->writeElement('HyperlinksChanged', 'false');
 
diff --git a/tests/PhpSpreadsheetTests/Reader/Xml/XmlPropertiesTest.php b/tests/PhpSpreadsheetTests/Reader/Xml/XmlPropertiesTest.php
new file mode 100644
index 0000000000..8b4a225d3f
--- /dev/null
+++ b/tests/PhpSpreadsheetTests/Reader/Xml/XmlPropertiesTest.php
@@ -0,0 +1,187 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheetTests\Reader\Xml;
+
+use DateTimeImmutable;
+use PhpOffice\PhpSpreadsheet\Reader\Xml;
+use PhpOffice\PhpSpreadsheetTests\Functional\AbstractFunctional;
+
+class XmlPropertiesTest extends AbstractFunctional
+{
+    /** @var string */
+    private $filename = 'tests/data/Reader/Xml/hyperlinkbase.xml';
+
+    public function testProperties(): void
+    {
+        $reader = new Xml();
+        $spreadsheet = $reader->load($this->filename);
+
+        $properties = $spreadsheet->getProperties();
+        self::assertSame('title', $properties->getTitle());
+        self::assertSame('topic', $properties->getSubject());
+        self::assertSame('author', $properties->getCreator());
+        self::assertSame('keyword1, keyword2', $properties->getKeywords());
+        self::assertSame('no comment', $properties->getDescription());
+        self::assertSame('last author', $properties->getLastModifiedBy());
+        $expected = self::timestampToInt('2023-05-18T11:21:43Z');
+        self::assertEquals($expected, $properties->getCreated());
+        $expected = self::timestampToInt('2023-05-18T11:30:00Z');
+        self::assertEquals($expected, $properties->getModified());
+        self::assertSame('category', $properties->getCategory());
+        self::assertSame('manager', $properties->getManager());
+        self::assertSame('company', $properties->getCompany());
+
+        self::assertSame('https://phpspreadsheet.readthedocs.io/en/latest/', $properties->getHyperlinkBase());
+
+        self::assertSame('TheString', $properties->getCustomPropertyValue('StringProperty'));
+        self::assertSame(12345, $properties->getCustomPropertyValue('NumberProperty'));
+        $expected = self::timestampToInt('2023-05-18T10:00:00Z');
+        self::assertEquals($expected, $properties->getCustomPropertyValue('DateProperty'));
+        $expected = self::timestampToInt('2023-05-19T11:00:00Z');
+        self::assertEquals($expected, $properties->getCustomPropertyValue('DateProperty2'));
+        self::assertTrue($properties->getCustomPropertyValue('BooleanPropertyTrue'));
+        self::assertFalse($properties->getCustomPropertyValue('BooleanPropertyFalse'));
+        self::assertEqualsWithDelta(1.2345, $properties->getCustomPropertyValue('FloatProperty'), 1E-8);
+
+        $sheet = $spreadsheet->getActiveSheet();
+        // Note that relative links don't actually work in XML format.
+        // It will, however, work just fine in the Xlsx and Html copies.
+        $hyperlink = $sheet->getCell('A1')->getHyperlink();
+        self::assertSame('references/features-cross-reference/', $hyperlink->getUrl());
+        // Same comment as for cell above.
+        self::assertSame('topics/accessing-cells/', $sheet->getCell('A2')->getCalculatedValue());
+        // No problem for absolute links.
+        $hyperlink = $sheet->getCell('A3')->getHyperlink();
+        self::assertSame('https://www.google.com/', $hyperlink->getUrl());
+        self::assertSame('https://www.yahoo.com', $sheet->getCell('A4')->getCalculatedValue());
+
+        $reloadedSpreadsheet = $this->writeAndReload($spreadsheet, 'Xlsx');
+        $spreadsheet->disconnectWorksheets();
+
+        $properties = $reloadedSpreadsheet->getProperties();
+        self::assertSame('title', $properties->getTitle());
+        self::assertSame('topic', $properties->getSubject());
+        self::assertSame('author', $properties->getCreator());
+        self::assertSame('keyword1, keyword2', $properties->getKeywords());
+        self::assertSame('no comment', $properties->getDescription());
+        self::assertSame('last author', $properties->getLastModifiedBy());
+        $expected = self::timestampToInt('2023-05-18T11:21:43Z');
+        self::assertEquals($expected, $properties->getCreated());
+        $expected = self::timestampToInt('2023-05-18T11:30:00Z');
+        self::assertEquals($expected, $properties->getModified());
+        self::assertSame('category', $properties->getCategory());
+        self::assertSame('manager', $properties->getManager());
+        self::assertSame('company', $properties->getCompany());
+
+        self::assertSame('https://phpspreadsheet.readthedocs.io/en/latest/', $properties->getHyperlinkBase());
+
+        self::assertSame('TheString', $properties->getCustomPropertyValue('StringProperty'));
+        self::assertSame(12345, $properties->getCustomPropertyValue('NumberProperty'));
+        // Note that Xlsx will ignore the time part when displaying
+        // the property.
+        $expected = self::timestampToInt('2023-05-18T10:00:00Z');
+        self::assertEquals($expected, $properties->getCustomPropertyValue('DateProperty'));
+        $expected = self::timestampToInt('2023-05-19T11:00:00Z');
+        self::assertEquals($expected, $properties->getCustomPropertyValue('DateProperty2'));
+        self::assertTrue($properties->getCustomPropertyValue('BooleanPropertyTrue'));
+        self::assertFalse($properties->getCustomPropertyValue('BooleanPropertyFalse'));
+        self::assertEqualsWithDelta(1.2345, $properties->getCustomPropertyValue('FloatProperty'), 1E-8);
+
+        $sheet = $reloadedSpreadsheet->getActiveSheet();
+        // Note that relative links don't actually work in XML format.
+        // It will, however, work just fine in the Xlsx and Html copies.
+        $hyperlink = $sheet->getCell('A1')->getHyperlink();
+        self::assertSame('references/features-cross-reference/', $hyperlink->getUrl());
+        // Same comment as for cell above.
+        self::assertSame('topics/accessing-cells/', $sheet->getCell('A2')->getCalculatedValue());
+        // No problem for absolute links.
+        $hyperlink = $sheet->getCell('A3')->getHyperlink();
+        self::assertSame('https://www.google.com/', $hyperlink->getUrl());
+        self::assertSame('https://www.yahoo.com', $sheet->getCell('A4')->getCalculatedValue());
+
+        $reloadedSpreadsheet->disconnectWorksheets();
+    }
+
+    public function testPropertiesHtml(): void
+    {
+        $reader = new Xml();
+        $spreadsheet = $reader->load($this->filename);
+
+        $reloadedSpreadsheet = $this->writeAndReload($spreadsheet, 'Html');
+        $spreadsheet->disconnectWorksheets();
+
+        $properties = $reloadedSpreadsheet->getProperties();
+        self::assertSame('https://phpspreadsheet.readthedocs.io/en/latest/', $properties->getHyperlinkBase());
+
+        self::assertSame('title', $properties->getTitle());
+        self::assertSame('topic', $properties->getSubject());
+        self::assertSame('author', $properties->getCreator());
+        self::assertSame('keyword1, keyword2', $properties->getKeywords());
+        self::assertSame('no comment', $properties->getDescription());
+        self::assertSame('last author', $properties->getLastModifiedBy());
+        $expected = self::timestampToInt('2023-05-18T11:21:43Z');
+        self::assertEquals($expected, $properties->getCreated());
+        $expected = self::timestampToInt('2023-05-18T11:30:00Z');
+        self::assertEquals($expected, $properties->getModified());
+        self::assertSame('category', $properties->getCategory());
+        self::assertSame('manager', $properties->getManager());
+        self::assertSame('company', $properties->getCompany());
+
+        self::assertSame('TheString', $properties->getCustomPropertyValue('StringProperty'));
+        self::assertSame(12345, $properties->getCustomPropertyValue('NumberProperty'));
+        $expected = self::timestampToInt('2023-05-18T10:00:00Z');
+        self::assertEquals($expected, $properties->getCustomPropertyValue('DateProperty'));
+        $expected = self::timestampToInt('2023-05-19T11:00:00Z');
+        self::assertEquals($expected, $properties->getCustomPropertyValue('DateProperty2'));
+        self::assertTrue($properties->getCustomPropertyValue('BooleanPropertyTrue'));
+        self::assertFalse($properties->getCustomPropertyValue('BooleanPropertyFalse'));
+        self::assertEqualsWithDelta(1.2345, $properties->getCustomPropertyValue('FloatProperty'), 1E-8);
+
+        $sheet = $reloadedSpreadsheet->getActiveSheet();
+        // Note that relative links don't actually work in XML format.
+        // It will, however, work just fine in the Xlsx and Html copies.
+        $hyperlink = $sheet->getCell('A1')->getHyperlink();
+        self::assertSame('references/features-cross-reference/', $hyperlink->getUrl());
+        // Same comment as for cell above.
+        self::assertSame('topics/accessing-cells/', $sheet->getCell('A2')->getCalculatedValue());
+        // No problem for absolute links.
+        $hyperlink = $sheet->getCell('A3')->getHyperlink();
+        self::assertSame('https://www.google.com/', $hyperlink->getUrl());
+        self::assertSame('https://www.yahoo.com', $sheet->getCell('A4')->getCalculatedValue());
+
+        $reloadedSpreadsheet->disconnectWorksheets();
+    }
+
+    public function testHyperlinksXls(): void
+    {
+        $reader = new Xml();
+        $spreadsheet = $reader->load($this->filename);
+
+        $reloadedSpreadsheet = $this->writeAndReload($spreadsheet, 'Xls');
+        $spreadsheet->disconnectWorksheets();
+
+        $sheet = $reloadedSpreadsheet->getActiveSheet();
+        // Note that relative links don't actually work in XML format.
+        // However, Xls Writer will convert relative to absolute.
+        $hyperlink = $sheet->getCell('A1')->getHyperlink();
+        self::assertSame('https://phpspreadsheet.readthedocs.io/en/latest/references/features-cross-reference/', $hyperlink->getUrl());
+        // Xls writer does not get involved in function call.
+        // However, hyperlink does get updated somewhere.
+        //self::assertSame('topics/accessing-cells/', $sheet->getCell('A2')->getCalculatedValue());
+        $hyperlink = $sheet->getCell('A2')->getHyperlink();
+        self::assertSame('https://phpspreadsheet.readthedocs.io/en/latest/topics/accessing-cells/', $hyperlink->getUrl());
+        // No problem for absolute links.
+        $hyperlink = $sheet->getCell('A3')->getHyperlink();
+        self::assertSame('https://www.google.com/', $hyperlink->getUrl());
+        self::assertSame('https://www.yahoo.com', $sheet->getCell('A4')->getCalculatedValue());
+
+        $reloadedSpreadsheet->disconnectWorksheets();
+    }
+
+    private static function timestampToInt(string $timestamp): string
+    {
+        $dto = new DateTimeImmutable($timestamp);
+
+        return $dto->format('U');
+    }
+}
diff --git a/tests/data/Reader/Xml/hyperlinkbase.xml b/tests/data/Reader/Xml/hyperlinkbase.xml
new file mode 100644
index 0000000000..e3448ee994
--- /dev/null
+++ b/tests/data/Reader/Xml/hyperlinkbase.xml
@@ -0,0 +1,91 @@
+<?xml version="1.0"?>
+<?mso-application progid="Excel.Sheet"?>
+<Workbook xmlns="urn:schemas-microsoft-com:office:spreadsheet"
+ xmlns:o="urn:schemas-microsoft-com:office:office"
+ xmlns:x="urn:schemas-microsoft-com:office:excel"
+ xmlns:dt="uuid:C2F41010-65B3-11d1-A29F-00AA00C14882"
+ xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet"
+ xmlns:html="http://www.w3.org/TR/REC-html40">
+ <DocumentProperties xmlns="urn:schemas-microsoft-com:office:office">
+  <Title>title</Title>
+  <Subject>topic</Subject>
+  <Author>author</Author>
+  <Keywords>keyword1, keyword2</Keywords>
+  <Description>no comment</Description>
+  <LastAuthor>last author</LastAuthor>
+  <Created>2023-05-18T11:21:43Z</Created>
+  <LastSaved>2023-05-18T11:30:00Z</LastSaved>
+  <Category>category</Category>
+  <Manager>manager</Manager>
+  <Company>company</Company>
+  <HyperlinkBase>https://phpspreadsheet.readthedocs.io/en/latest/</HyperlinkBase>
+  <Version>16.00</Version>
+ </DocumentProperties>
+ <CustomDocumentProperties xmlns="urn:schemas-microsoft-com:office:office">
+  <StringProperty dt:dt="string">TheString</StringProperty>
+  <NumberProperty dt:dt="integer">12345</NumberProperty>
+  <DateProperty dt:dt="dateTime.tz">2023-05-18T10:00:00Z</DateProperty>
+  <DateProperty2 dt:dt="dateTime.iso8601tz">2023-05-19T11:00:00Z</DateProperty2>
+  <BooleanPropertyTrue dt:dt="boolean">1</BooleanPropertyTrue>
+  <BooleanPropertyFalse dt:dt="boolean">0</BooleanPropertyFalse>
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