diff --git a/ExportDXF/Extensions.cs b/ExportDXF/Extensions.cs
index a628f0e..6b3b6c4 100644
--- a/ExportDXF/Extensions.cs
+++ b/ExportDXF/Extensions.cs
@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Drawing;
+using System.Linq;
 using System.Text;
 using System.Windows.Forms;
 
diff --git a/ExportDXF/SolidWorksExtensions.cs b/ExportDXF/SolidWorksExtensions.cs
index b2995fd..8c9cc41 100644
--- a/ExportDXF/SolidWorksExtensions.cs
+++ b/ExportDXF/SolidWorksExtensions.cs
@@ -2,7 +2,6 @@
 using SolidWorks.Interop.swconst;
 using System.Collections.Generic;
 using System.Diagnostics;
-using System.Linq;
 
 namespace ExportDXF
 {
@@ -128,31 +127,5 @@ namespace ExportDXF
             return feature?.Parameter(dimName) as Dimension;
         }
 
-        public static string PunctuateList(this IEnumerable<string> stringList)
-        {
-            var list = stringList.ToList();
-
-            switch (list.Count)
-            {
-                case 0:
-                    return string.Empty;
-
-                case 1:
-                    return list[0];
-
-                case 2:
-                    return string.Format("{0} and {1}", list[0], list[1]);
-
-                default:
-                    var s = string.Empty;
-
-                    for (int i = 0; i < list.Count - 1; i++)
-                        s += list[i] + ", ";
-
-                    s += "and " + list.Last();
-
-                    return s;
-            }
-        }
     }
 }
\ No newline at end of file