From 0b1d8c58c4d46cc4f0da4d7f5d582bc58e7cde35 Mon Sep 17 00:00:00 2001
From: WFarmerEthisphere <william.farmer@ethisphere.com>
Date: Fri, 6 Oct 2023 09:35:00 -0700
Subject: [PATCH] Fixed broken powerpoint presentations due to MS Office update
 2309

---
 docs/changes/1.1.0.md                                | 5 +++--
 src/PhpPresentation/Shape/Chart/Axis.php             | 4 +++-
 tests/PhpPresentation/Tests/Shape/Chart/AxisTest.php | 2 +-
 3 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/docs/changes/1.1.0.md b/docs/changes/1.1.0.md
index 26d0655f5..aed989f2b 100644
--- a/docs/changes/1.1.0.md
+++ b/docs/changes/1.1.0.md
@@ -9,8 +9,9 @@
 - Support for Hyperlink Text Color - [@MartynasJanu](https://github.com/MartynasJanu) & [@Progi1984](https://github.com/Progi1984) in [#682](https://github.com/PHPOffice/PHPPresentation/pull/682)
     - PowerPoint2007 Reader
     - PowerPoint2007 Writer
-- Added support for PHP 8.2 & 8.3 - [@Progi1984](https://github.com/Progi1984) in [#766](https://github.com/PHPOffice/PHPPresentation/pull/766)
+- Added support for PHP 8.2 & 8.3 - [@Progi1984](https://github.com/Progi1984) in [#769](https://github.com/PHPOffice/PHPPresentation/pull/769)
 
 ## Bugfixes
 
-- Fixed CI - [@Progi1984](https://github.com/Progi1984) in [#766](https://github.com/PHPOffice/PHPPresentation/pull/766)
\ No newline at end of file
+- Fixed CI - [@Progi1984](https://github.com/Progi1984) in [#766](https://github.com/PHPOffice/PHPPresentation/pull/766)
+- Fixed broken PPT Presentations due to MS Office update 2309 - [@WFarmerEthisphere](https://github.com/WFarmerEthisphere) in [#770](https://github.com/PHPOffice/PHPPresentation/pull/770)
\ No newline at end of file
diff --git a/src/PhpPresentation/Shape/Chart/Axis.php b/src/PhpPresentation/Shape/Chart/Axis.php
index f8588e903..3cf1ae699 100644
--- a/src/PhpPresentation/Shape/Chart/Axis.php
+++ b/src/PhpPresentation/Shape/Chart/Axis.php
@@ -41,6 +41,8 @@ class Axis implements ComparableInterface
     public const CROSSES_MIN = 'min';
     public const CROSSES_MAX = 'max';
 
+    public const DEFAULT_FORMAT_CODE = 'general';
+
     /**
      * Title.
      *
@@ -58,7 +60,7 @@ class Axis implements ComparableInterface
      *
      * @var string
      */
-    private $formatCode = '';
+    private $formatCode = self::DEFAULT_FORMAT_CODE;
 
     /**
      * Font.
diff --git a/tests/PhpPresentation/Tests/Shape/Chart/AxisTest.php b/tests/PhpPresentation/Tests/Shape/Chart/AxisTest.php
index 7cf9ee391..2a4f4567c 100644
--- a/tests/PhpPresentation/Tests/Shape/Chart/AxisTest.php
+++ b/tests/PhpPresentation/Tests/Shape/Chart/AxisTest.php
@@ -93,7 +93,7 @@ public function testFormatCode(): void
     {
         $object = new Axis();
         self::assertInstanceOf(Axis::class, $object->setFormatCode());
-        self::assertEquals('', $object->getFormatCode());
+        self::assertEquals(Axis::DEFAULT_FORMAT_CODE, $object->getFormatCode());
         self::assertInstanceOf(Axis::class, $object->setFormatCode('AAAA'));
         self::assertEquals('AAAA', $object->getFormatCode());
     }