diff --git a/genericfileelement.h b/genericfileelement.h
index ac4696c..e4c8720 100644
--- a/genericfileelement.h
+++ b/genericfileelement.h
@@ -161,6 +161,7 @@ public:
     uint32 sizeLength() const;
     uint64 dataOffset() const;
     uint64 totalSize() const;
+    uint64 endOffset() const;
     uint64 maxTotalSize() const;
     implementationType* parent();
     const implementationType* parent() const;
@@ -410,6 +411,15 @@ inline uint64 GenericFileElement<ImplementationType>::totalSize() const
     return headerSize() + dataSize();
 }
 
+/*!
+ * \brief Returns the offset of the first byte which doesn't belong to this element anymore.
+ */
+template <class ImplementationType>
+inline uint64 GenericFileElement<ImplementationType>::endOffset() const
+{
+    return startOffset() + totalSize();
+}
+
 /*!
  * \brief Returns maximum total size.
  *