diff --git a/ClosedXML/ClosedXML.csproj b/ClosedXML/ClosedXML.csproj
index 4012c76..4e430ca 100644
--- a/ClosedXML/ClosedXML.csproj
+++ b/ClosedXML/ClosedXML.csproj
@@ -138,6 +138,7 @@
     <Compile Include="Excel\CalcEngine\Functions\Is.cs" />
     <Compile Include="Excel\Misc\XLCallbackAction.cs" />
     <Compile Include="Excel\Misc\XLReentrantEnumerableSet.cs" />
+    <Compile Include="Excel\Tables\XLTableTheme.cs" />
     <Compile Include="Excel\XLConstants.cs" />
     <Compile Include="Utils\GraphicsUtils.cs" />
     <Compile Include="XLHelper.cs" />
diff --git a/ClosedXML/ClosedXML/ClosedXML/Excel/Tables/XLTableTheme.cs b/ClosedXML/ClosedXML/ClosedXML/Excel/Tables/XLTableTheme.cs
new file mode 100644
index 0000000..a0a86eb
--- /dev/null
+++ b/ClosedXML/ClosedXML/ClosedXML/Excel/Tables/XLTableTheme.cs
@@ -0,0 +1,121 @@
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+
+namespace ClosedXML.Excel
+{
+    public sealed class XLTableTheme
+    {
+        public static readonly XLTableTheme None = new XLTableTheme("None");
+        public static readonly XLTableTheme TableStyleMedium28 = new XLTableTheme("TableStyleMedium28");
+        public static readonly XLTableTheme TableStyleMedium27 = new XLTableTheme("TableStyleMedium27");
+        public static readonly XLTableTheme TableStyleMedium26 = new XLTableTheme("TableStyleMedium26");
+        public static readonly XLTableTheme TableStyleMedium25 = new XLTableTheme("TableStyleMedium25");
+        public static readonly XLTableTheme TableStyleMedium24 = new XLTableTheme("TableStyleMedium24");
+        public static readonly XLTableTheme TableStyleMedium23 = new XLTableTheme("TableStyleMedium23");
+        public static readonly XLTableTheme TableStyleMedium22 = new XLTableTheme("TableStyleMedium22");
+        public static readonly XLTableTheme TableStyleMedium21 = new XLTableTheme("TableStyleMedium21");
+        public static readonly XLTableTheme TableStyleMedium20 = new XLTableTheme("TableStyleMedium20");
+        public static readonly XLTableTheme TableStyleMedium19 = new XLTableTheme("TableStyleMedium19");
+        public static readonly XLTableTheme TableStyleMedium18 = new XLTableTheme("TableStyleMedium18");
+        public static readonly XLTableTheme TableStyleMedium17 = new XLTableTheme("TableStyleMedium17");
+        public static readonly XLTableTheme TableStyleMedium16 = new XLTableTheme("TableStyleMedium16");
+        public static readonly XLTableTheme TableStyleMedium15 = new XLTableTheme("TableStyleMedium15");
+        public static readonly XLTableTheme TableStyleMedium14 = new XLTableTheme("TableStyleMedium14");
+        public static readonly XLTableTheme TableStyleMedium13 = new XLTableTheme("TableStyleMedium13");
+        public static readonly XLTableTheme TableStyleMedium12 = new XLTableTheme("TableStyleMedium12");
+        public static readonly XLTableTheme TableStyleMedium11 = new XLTableTheme("TableStyleMedium11");
+        public static readonly XLTableTheme TableStyleMedium10 = new XLTableTheme("TableStyleMedium10");
+        public static readonly XLTableTheme TableStyleMedium9 = new XLTableTheme("TableStyleMedium9");
+        public static readonly XLTableTheme TableStyleMedium8 = new XLTableTheme("TableStyleMedium8");
+        public static readonly XLTableTheme TableStyleMedium7 = new XLTableTheme("TableStyleMedium7");
+        public static readonly XLTableTheme TableStyleMedium6 = new XLTableTheme("TableStyleMedium6");
+        public static readonly XLTableTheme TableStyleMedium5 = new XLTableTheme("TableStyleMedium5");
+        public static readonly XLTableTheme TableStyleMedium4 = new XLTableTheme("TableStyleMedium4");
+        public static readonly XLTableTheme TableStyleMedium3 = new XLTableTheme("TableStyleMedium3");
+        public static readonly XLTableTheme TableStyleMedium2 = new XLTableTheme("TableStyleMedium2");
+        public static readonly XLTableTheme TableStyleMedium1 = new XLTableTheme("TableStyleMedium1");
+        public static readonly XLTableTheme TableStyleLight21 = new XLTableTheme("TableStyleLight21");
+        public static readonly XLTableTheme TableStyleLight20 = new XLTableTheme("TableStyleLight20");
+        public static readonly XLTableTheme TableStyleLight19 = new XLTableTheme("TableStyleLight19");
+        public static readonly XLTableTheme TableStyleLight18 = new XLTableTheme("TableStyleLight18");
+        public static readonly XLTableTheme TableStyleLight17 = new XLTableTheme("TableStyleLight17");
+        public static readonly XLTableTheme TableStyleLight16 = new XLTableTheme("TableStyleLight16");
+        public static readonly XLTableTheme TableStyleLight15 = new XLTableTheme("TableStyleLight15");
+        public static readonly XLTableTheme TableStyleLight14 = new XLTableTheme("TableStyleLight14");
+        public static readonly XLTableTheme TableStyleLight13 = new XLTableTheme("TableStyleLight13");
+        public static readonly XLTableTheme TableStyleLight12 = new XLTableTheme("TableStyleLight12");
+        public static readonly XLTableTheme TableStyleLight11 = new XLTableTheme("TableStyleLight11");
+        public static readonly XLTableTheme TableStyleLight10 = new XLTableTheme("TableStyleLight10");
+        public static readonly XLTableTheme TableStyleLight9 = new XLTableTheme("TableStyleLight9");
+        public static readonly XLTableTheme TableStyleLight8 = new XLTableTheme("TableStyleLight8");
+        public static readonly XLTableTheme TableStyleLight7 = new XLTableTheme("TableStyleLight7");
+        public static readonly XLTableTheme TableStyleLight6 = new XLTableTheme("TableStyleLight6");
+        public static readonly XLTableTheme TableStyleLight5 = new XLTableTheme("TableStyleLight5");
+        public static readonly XLTableTheme TableStyleLight4 = new XLTableTheme("TableStyleLight4");
+        public static readonly XLTableTheme TableStyleLight3 = new XLTableTheme("TableStyleLight3");
+        public static readonly XLTableTheme TableStyleLight2 = new XLTableTheme("TableStyleLight2");
+        public static readonly XLTableTheme TableStyleLight1 = new XLTableTheme("TableStyleLight1");
+        public static readonly XLTableTheme TableStyleDark11 = new XLTableTheme("TableStyleDark11");
+        public static readonly XLTableTheme TableStyleDark10 = new XLTableTheme("TableStyleDark10");
+        public static readonly XLTableTheme TableStyleDark9 = new XLTableTheme("TableStyleDark9");
+        public static readonly XLTableTheme TableStyleDark8 = new XLTableTheme("TableStyleDark8");
+        public static readonly XLTableTheme TableStyleDark7 = new XLTableTheme("TableStyleDark7");
+        public static readonly XLTableTheme TableStyleDark6 = new XLTableTheme("TableStyleDark6");
+        public static readonly XLTableTheme TableStyleDark5 = new XLTableTheme("TableStyleDark5");
+        public static readonly XLTableTheme TableStyleDark4 = new XLTableTheme("TableStyleDark4");
+        public static readonly XLTableTheme TableStyleDark3 = new XLTableTheme("TableStyleDark3");
+        public static readonly XLTableTheme TableStyleDark2 = new XLTableTheme("TableStyleDark2");
+        public static readonly XLTableTheme TableStyleDark1 = new XLTableTheme("TableStyleDark1");
+
+        public string Name { get; private set; }
+
+        public XLTableTheme(string name)
+        {
+            this.Name = name;
+        }
+
+        private static IEnumerable<XLTableTheme> allThemes;
+
+        public static IEnumerable<XLTableTheme> GetAllThemes()
+        {
+            return (allThemes ?? (allThemes = typeof(XLTableTheme).GetFields(BindingFlags.Static | BindingFlags.Public)
+                .Where(fi => fi.FieldType.Equals(typeof(XLTableTheme)))
+                .Select(fi => (XLTableTheme)fi.GetValue(null))
+                .ToArray()));
+        }
+
+        public static XLTableTheme FromName(string name)
+        {
+            return GetAllThemes().FirstOrDefault(s => s.Name == name);
+        }
+
+        #region Overrides
+
+        public override bool Equals(object obj)
+        {
+            if (obj == null)
+            {
+                return false;
+            }
+            XLTableTheme theme = obj as XLTableTheme;
+            if (theme == null)
+            {
+                return false;
+            }
+            return this.Name.Equals(theme.Name);
+        }
+
+        public override int GetHashCode()
+        {
+            return this.Name.GetHashCode();
+        }
+
+        public override string ToString()
+        {
+            return this.Name;
+        }
+
+        #endregion Overrides
+    }
+}
\ No newline at end of file
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/Excel/Tables/IXLTable.cs b/ClosedXML/Excel/Tables/IXLTable.cs
index ded04e3..e109f6d 100644
--- a/ClosedXML/Excel/Tables/IXLTable.cs
+++ b/ClosedXML/Excel/Tables/IXLTable.cs
@@ -2,71 +2,6 @@
 using System.Collections.Generic;
 namespace ClosedXML.Excel
 {
-    public enum XLTableTheme
-    {
-        TableStyleMedium28, 
-        TableStyleMedium27, 
-        TableStyleMedium26, 
-        TableStyleMedium25, 
-        TableStyleMedium24, 
-        TableStyleMedium23, 
-        TableStyleMedium22, 
-        TableStyleMedium21, 
-        TableStyleMedium20, 
-        TableStyleMedium19, 
-        TableStyleMedium18, 
-        TableStyleMedium17, 
-        TableStyleMedium16, 
-        TableStyleMedium15, 
-        TableStyleMedium14, 
-        TableStyleMedium13, 
-        TableStyleMedium12, 
-        TableStyleMedium11, 
-        TableStyleMedium10, 
-        TableStyleMedium9, 
-        TableStyleMedium8, 
-        TableStyleMedium7, 
-        TableStyleMedium6, 
-        TableStyleMedium5, 
-        TableStyleMedium4, 
-        TableStyleMedium3, 
-        TableStyleMedium2, 
-        TableStyleMedium1, 
-        TableStyleLight21, 
-        TableStyleLight20, 
-        TableStyleLight19, 
-        TableStyleLight18, 
-        TableStyleLight17, 
-        TableStyleLight16, 
-        TableStyleLight15, 
-        TableStyleLight14, 
-        TableStyleLight13, 
-        TableStyleLight12, 
-        TableStyleLight11, 
-        TableStyleLight10, 
-        TableStyleLight9, 
-        TableStyleLight8, 
-        TableStyleLight7, 
-        TableStyleLight6, 
-        TableStyleLight5, 
-        TableStyleLight4, 
-        TableStyleLight3, 
-        TableStyleLight2, 
-        TableStyleLight1, 
-        TableStyleDark11, 
-        TableStyleDark10, 
-        TableStyleDark9, 
-        TableStyleDark8, 
-        TableStyleDark7, 
-        TableStyleDark6, 
-        TableStyleDark5, 
-        TableStyleDark4, 
-        TableStyleDark3, 
-        TableStyleDark2, 
-        TableStyleDark1,
-        None
-    }
-
     public interface IXLTable : IXLRange
     {
         string Name { get; set; }
diff --git a/ClosedXML/Excel/XLWorkbook_Load.cs b/ClosedXML/Excel/XLWorkbook_Load.cs
index 2fc655e..4c3424f 100644
--- a/ClosedXML/Excel/XLWorkbook_Load.cs
+++ b/ClosedXML/Excel/XLWorkbook_Load.cs
@@ -268,7 +268,13 @@
                         if (dTable.TableStyleInfo.ShowColumnStripes != null)
                             xlTable.ShowColumnStripes = dTable.TableStyleInfo.ShowColumnStripes.Value;
                         if (dTable.TableStyleInfo.Name != null)
-                            xlTable.Theme = (XLTableTheme) Enum.Parse(typeof (XLTableTheme), dTable.TableStyleInfo.Name.Value);
+                        {
+                            var theme = XLTableTheme.FromName(dTable.TableStyleInfo.Name.Value);
+                            if (theme != null)
+                                xlTable.Theme = theme;
+                            else
+                                xlTable.Theme = new XLTableTheme(dTable.TableStyleInfo.Name.Value);
+                        }
                         else
                             xlTable.Theme = XLTableTheme.None;
                     }
diff --git a/ClosedXML/Excel/XLWorkbook_Save.cs b/ClosedXML/Excel/XLWorkbook_Save.cs
index 0bfa65c..0e14564 100644
--- a/ClosedXML/Excel/XLWorkbook_Save.cs
+++ b/ClosedXML/Excel/XLWorkbook_Save.cs
@@ -1744,7 +1744,7 @@
             };
 
             if (xlTable.Theme != XLTableTheme.None)
-                tableStyleInfo1.Name = Enum.GetName(typeof(XLTableTheme), xlTable.Theme);
+                tableStyleInfo1.Name = xlTable.Theme.Name;
 
             if (xlTable.ShowAutoFilter)
             {
diff --git a/ClosedXML_Net3.5/ClosedXML_Net3.5.csproj b/ClosedXML_Net3.5/ClosedXML_Net3.5.csproj
index f057b4d..cedc4a3 100644
--- a/ClosedXML_Net3.5/ClosedXML_Net3.5.csproj
+++ b/ClosedXML_Net3.5/ClosedXML_Net3.5.csproj
@@ -831,6 +831,9 @@
     <Compile Include="..\ClosedXML\Excel\Tables\XLTables.cs">
       <Link>Excel\Tables\XLTables.cs</Link>
     </Compile>
+    <Compile Include="..\ClosedXML\Excel\Tables\XLTableTheme.cs">
+      <Link>Excel\Tables\XLTableTheme.cs</Link>
+    </Compile>
     <Compile Include="..\ClosedXML\Excel\XLConstants.cs">
       <Link>Excel\XLConstants.cs</Link>
     </Compile>
diff --git a/ClosedXML_Tests/ClosedXML_Tests.csproj b/ClosedXML_Tests/ClosedXML_Tests.csproj
index 0342658..3574e8b 100644
--- a/ClosedXML_Tests/ClosedXML_Tests.csproj
+++ b/ClosedXML_Tests/ClosedXML_Tests.csproj
@@ -118,6 +118,7 @@
     <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" />
@@ -283,6 +284,7 @@
     <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_Tests/TestHelper.cs b/ClosedXML_Tests/TestHelper.cs
index eb02623..be509a2 100644
--- a/ClosedXML_Tests/TestHelper.cs
+++ b/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