Fixed Position in tests

main/HPSF/Section.cs

@@ -76,7 +76,7 @@ namespace NPOI.HPSF
         /// <summary>
         /// This section's properties.
         /// </summary>
-        private IDictionary<long, Property> properties = new SortedDictionary<long, Property>();
+        private SortedDictionary<long, Property> properties = new SortedDictionary<long, Property>();
 
         /// <summary>
         /// This member is <c>true</c> if the last call to {@link

openxml4Net/Util/ZipInputStreamZipEntrySource.cs

@@ -30,6 +30,8 @@ namespace NPOI.OpenXml4Net.Util
             zipEntries = new List<FakeZipEntry>();
 
             bool going = true;
+            if(inp.Position != 0)
+                inp.Position = 0;
             while (going)
             {
                 ZipEntry zipEntry = inp.GetNextEntry();