1 files changed, 12 insertions, 3 deletions

diff --git a/src/WixToolset.Data/WindowsInstaller/WindowsInstallerData.cs b/src/WixToolset.Data/WindowsInstaller/WindowsInstallerData.cs
index 43c19d69..e30be598 100644
--- a/src/WixToolset.Data/WindowsInstaller/WindowsInstallerData.cs
+++ b/src/WixToolset.Data/WindowsInstaller/WindowsInstallerData.cs
@@ -85,13 +85,22 @@ namespace WixToolset.Data.WindowsInstaller
         {
             using (var writer = XmlWriter.Create(wixout.CreateDataStream(WixOutputStreamName)))
             {
-                writer.WriteStartDocument();
-                this.Write(writer);
-                writer.WriteEndDocument();
+                this.Save(writer);
             }
         }
 
         /// <summary>
+        /// Saves an output to an <c>XmlWriter</c>.
+        /// </summary>
+        /// <param name="wixout">XmlWriter to save to.</param>
+        public void Save(XmlWriter writer)
+        {
+            writer.WriteStartDocument();
+            this.Write(writer);
+            writer.WriteEndDocument();
+        }
+
+        /// <summary>
         /// Gets table by name.
         /// </summary>
         public bool TryGetTable(string tableName, out Table table) => this.Tables.TryGetTable(tableName, out table);