From cf8ca8c16db9940741037e9c880dcb377c571a27 Mon Sep 17 00:00:00 2001
From: ABykiev <bykiev.andrei@mail.ru>
Date: Sat, 5 Oct 2024 13:43:28 +0300
Subject: [PATCH] Fix checking if cell style is set

This PR fixes checking if cell style is set
---
 OpenXmlFormats/Spreadsheet/Sheet/CT_Cell.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/OpenXmlFormats/Spreadsheet/Sheet/CT_Cell.cs b/OpenXmlFormats/Spreadsheet/Sheet/CT_Cell.cs
index 560042ab2..6eed7ac92 100644
--- a/OpenXmlFormats/Spreadsheet/Sheet/CT_Cell.cs
+++ b/OpenXmlFormats/Spreadsheet/Sheet/CT_Cell.cs
@@ -130,7 +130,7 @@ public bool IsSetT()
         }
         public bool IsSetS()
         {
-            return sField != 0;
+            return sField != null && sField != 0;
         }
         public bool IsSetF()
         {