diff --git a/WxTCmd/Classes/ActivityEntry.cs b/WxTCmd/Classes/ActivityEntry.cs
index f6ec4d4..afad057 100644
--- a/WxTCmd/Classes/ActivityEntry.cs
+++ b/WxTCmd/Classes/ActivityEntry.cs
@@ -8,7 +8,7 @@ public ActivityEntry(string id, string executable, string displayText, string co
             DateTimeOffset lastModifiedTime, DateTimeOffset expirationTime, DateTimeOffset? createdInCloud,
             DateTimeOffset startTime, DateTimeOffset? endTime, DateTimeOffset lastModifiedOnClient,
             DateTimeOffset? originalLastModifiedOnClient, int activityType, bool isLocalOnly, int eTag,
-            string packageIdHash, string platformDeviceId)
+            string packageIdHash, string platformDeviceId, string appActivityId)
         {
             Id = id;
             Executable = executable;
@@ -35,6 +35,7 @@ public ActivityEntry(string id, string executable, string displayText, string co
             ETag = eTag;
             PackageIdHash = packageIdHash;
             PlatformDeviceId = platformDeviceId;
+            AppActivityId = appActivityId;
         }
 
         public string Id { get; set; }
@@ -63,6 +64,8 @@ public ActivityEntry(string id, string executable, string displayText, string co
 
         public string PlatformDeviceId { get; set; }
 
+        public string AppActivityId { get; set; }
+
         public override string ToString()
         {
             return $"Exe: {Executable} DisplayText: {DisplayText} Start: {StartTime}";
diff --git a/WxTCmd/Program.cs b/WxTCmd/Program.cs
index 640ff83..c98c938 100644
--- a/WxTCmd/Program.cs
+++ b/WxTCmd/Program.cs
@@ -297,7 +297,7 @@ private static void Main(string[] args)
                         var a = new ActivityEntry(act.Id.ToString(), exe, displayText, contentInfo,
                             act.LastModifiedTime, act.ExpirationTime, act.CreatedInCloud, act.StartTime, act.EndTime,
                             act.LastModifiedOnClient, act.OriginalLastModifiedOnClient, act.ActivityType,
-                            act.IsLocalOnly == 1, act.ETag, act.PackageIdHash, act.PlatformDeviceId);
+                            act.IsLocalOnly == 1, act.ETag, act.PackageIdHash, act.PlatformDeviceId, act.AppActivityId);
 
                         activitys.Add(a);
                     }
@@ -372,7 +372,7 @@ private static void Main(string[] args)
 
                 if (activitys.Count > 0)
                 {
-       var actsFile = $"{ts1}_Activity.tsv";
+       var actsFile = $"{ts1}_Activity.csv";
                 var actsOut = Path.Combine(_fluentCommandLineParser.Object.CsvDirectory, actsFile);
 
                 using (var sw = new StreamWriter(actsOut,false,Encoding.Unicode))
@@ -416,6 +416,7 @@ private static void Main(string[] args)
                     foo.Map(t => t.PackageIdHash).Index(14);
                     foo.Map(t => t.PlatformDeviceId).Index(15);
                     foo.Map(t => t.Duration).Index(16);
+                    foo.Map(t => t.AppActivityId).Index(17);
 
                     csv.Configuration.RegisterClassMap(foo);