diff --git a/ClosedXML/ClosedXML/ClosedXML_Tests/ClosedXML_Tests.csproj b/ClosedXML/ClosedXML/ClosedXML_Tests/ClosedXML_Tests.csproj
index dbc5325..e4c7fd7 100644
--- a/ClosedXML/ClosedXML/ClosedXML_Tests/ClosedXML_Tests.csproj
+++ b/ClosedXML/ClosedXML/ClosedXML_Tests/ClosedXML_Tests.csproj
@@ -117,6 +117,7 @@
     <Compile Include="Excel\CalcEngine\IsTests.cs" />
     <Compile Include="Excel\CalcEngine\LogicalTests.cs" />
     <Compile Include="Excel\CalcEngine\TextTests.cs" />
+    <Compile Include="Excel\Loading\LoadingTests.cs" />
     <Compile Include="XLHelperTests.cs" />
     <Compile Include="Excel\AutoFilters\AutoFilterTests.cs" />
     <Compile Include="Excel\CalcEngine\DateAndTimeTests.cs" />
@@ -282,6 +283,7 @@
     <EmbeddedResource Include="Resource\Examples\ConditionalFormatting\CFIconSet.xlsx" />
     <EmbeddedResource Include="Resource\Examples\Ranges\SelectingRanges.xlsx" />
     <None Include="packages.config" />
+    <EmbeddedResource Include="Resource\Misc\TableWithCustomTheme.xlsx" />
     <None Include="Resource\Misc\WorkbookProperties.xlsx" />
   </ItemGroup>
   <ItemGroup />
diff --git a/ClosedXML/ClosedXML/ClosedXML_Tests/Excel/Loading/LoadingTests.cs b/ClosedXML/ClosedXML/ClosedXML_Tests/Excel/Loading/LoadingTests.cs
new file mode 100644
index 0000000..5412c0a
--- /dev/null
+++ b/ClosedXML/ClosedXML/ClosedXML_Tests/Excel/Loading/LoadingTests.cs
@@ -0,0 +1,31 @@
+using System;
+using System.Collections.Generic;
+using System.Data;
+using System.IO;
+using System.Linq;
+using ClosedXML.Excel;
+using NUnit.Framework;
+
+namespace ClosedXML_Tests.Excel
+{
+    // Tests in this fixture test only the successful loading of existing Excel files, 
+    // i.e. we test that ClosedXML doesn't choke on a given input file
+    // These tests DO NOT test that ClosedXML successfully recognises all the Excel parts or that it can successfully save those parts again.
+    [TestFixture]
+    public class LoadingTests
+    {
+        [Test]
+        public void CanSuccessfullyLoadFiles()
+        {
+            var files = new List<string>()
+            {
+                @"Misc\TableWithCustomTheme.xlsx"
+            };
+
+            foreach (var file in files)
+            {
+                TestHelper.LoadFile(file);
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/ClosedXML/ClosedXML/ClosedXML_Tests/Resource/Misc/TableWithCustomTheme.xlsx b/ClosedXML/ClosedXML/ClosedXML_Tests/Resource/Misc/TableWithCustomTheme.xlsx
new file mode 100644
index 0000000..ecca2ee
--- /dev/null
+++ b/ClosedXML/ClosedXML/ClosedXML_Tests/Resource/Misc/TableWithCustomTheme.xlsx
Binary files differ
diff --git a/ClosedXML/ClosedXML/ClosedXML_Tests/TestHelper.cs b/ClosedXML/ClosedXML/ClosedXML_Tests/TestHelper.cs
index eb02623..be509a2 100644
--- a/ClosedXML/ClosedXML/ClosedXML_Tests/TestHelper.cs
+++ b/ClosedXML/ClosedXML/ClosedXML_Tests/TestHelper.cs
@@ -89,5 +89,17 @@
             }
 #pragma warning restore 162
         }
+
+        public static void LoadFile(string filePartName)
+        {
+            var extractor = new ResourceFileExtractor(null, ".Resource.");
+
+            string resourcePath = filePartName.Replace('\\', '.').TrimStart('.');
+            using (var stream = extractor.ReadFileFromResToStream(resourcePath))
+            {
+                var wb = new XLWorkbook(stream);
+                wb.Dispose();
+            }
+        }
     }
 }
\ No newline at end of file