diff --git a/packages/seacas/applications/exodiff/exoII_read.C b/packages/seacas/applications/exodiff/exoII_read.C
index b55bd3ec70..ba97684ac0 100644
--- a/packages/seacas/applications/exodiff/exoII_read.C
+++ b/packages/seacas/applications/exodiff/exoII_read.C
@@ -965,6 +965,7 @@ template <typename INT> void ExoII_Read<INT>::Get_Init_Data()
   num_side_sets   = info.num_side_sets;
   num_edge_blocks = info.num_edge_blk;
   num_face_blocks = info.num_face_blk;
+  num_assemblies  = info.num_assembly;
   title           = info.title;
 
   if (err > 0 && !interFace.quiet_flag) {
diff --git a/packages/seacas/applications/exodiff/exoII_read.h b/packages/seacas/applications/exodiff/exoII_read.h
index 3cef8ec061..31038805b8 100644
--- a/packages/seacas/applications/exodiff/exoII_read.h
+++ b/packages/seacas/applications/exodiff/exoII_read.h
@@ -60,6 +60,7 @@ template <typename INT> class ExoII_Read
   size_t             Num_Elements() const { return num_elmts; }
   size_t             Num_Faces() const { return num_faces; }
   size_t             Num_Edges() const { return num_edges; }
+  size_t             Num_Assemblies() const { return num_assemblies; }
   size_t             Num_Node_Sets() const { return num_node_sets; }
   size_t             Num_Side_Sets() const { return num_side_sets; }
   size_t             Num_Edge_Blocks() const { return num_edge_blocks; }
@@ -204,6 +205,7 @@ template <typename INT> class ExoII_Read
   size_t                   num_side_sets{0};
   size_t                   num_edge_blocks{0};
   size_t                   num_face_blocks{0};
+  size_t                   num_assemblies{0};
   float                    db_version{0.0};
   float                    api_version{0.0};
   int                      io_word_size{0}; // Note: The "compute word size" is always 8.
diff --git a/packages/seacas/applications/exodiff/exodiff.C b/packages/seacas/applications/exodiff/exodiff.C
index 6398c0d50f..7342fc84c9 100644
--- a/packages/seacas/applications/exodiff/exodiff.C
+++ b/packages/seacas/applications/exodiff/exodiff.C
@@ -56,15 +56,15 @@ struct TimeInterp
 
 std::string Date()
 {
-  time_t     calendar_time = time(nullptr);
+  time_t calendar_time = time(nullptr);
 #if defined __NVCC__
   char       tbuf[32];
-  struct tm *local_time    = localtime(&calendar_time);
+  struct tm *local_time = localtime(&calendar_time);
   strftime(tbuf, 32, "%Y/%m/%d   %H:%M:%S %Z", local_time);
   std::string time_string(tbuf);
 #else
-  auto const local_time    = fmt::localtime(calendar_time);
-  auto       time_string   = fmt::format("{:%Y/%m/%d   %H:%M:%S %Z}", local_time);
+  auto const local_time  = fmt::localtime(calendar_time);
+  auto       time_string = fmt::format("{:%Y/%m/%d   %H:%M:%S %Z}", local_time);
 #endif
   return time_string;
 }
@@ -300,7 +300,7 @@ namespace {
         "{0}   Title: {2}\n"
         "{0}          Dim = {3}, Nodes = {5}, Elements = {6}, Faces = {20}, Edges = {21}\n"
         "{0}          Element Blocks = {4}, Face Blocks = {10}, Edge Blocks = {9}, Nodesets = {7}, "
-        "Sidesets = {8}\n"
+        "Sidesets = {8}, Assemblies = {22}\n"
         "{0}    Vars: Global = {11}, Nodal = {12}, Element = {13}, Face = {17}, Edge = {18}, "
         "Nodeset = {14}, Sideset = {15}, Times = {16}\n\n",
         prefix, fi.realpath(), file.Title(), file.Dimension(), file.Num_Element_Blocks(),
@@ -308,7 +308,7 @@ namespace {
         file.Num_Edge_Blocks(), file.Num_Face_Blocks(), file.Num_Global_Vars(),
         file.Num_Nodal_Vars(), file.Num_Element_Vars(), file.Num_NS_Vars(), file.Num_SS_Vars(),
         file.Num_Times(), file.Num_FB_Vars(), file.Num_EB_Vars(), count, file.Num_Faces(),
-        file.Num_Edges());
+        file.Num_Edges(), file.Num_Assemblies());
   }
 
   void initialize(std::vector<MinMaxData> &mm_entity, size_t size, const ToleranceType &ttype)
diff --git a/packages/seacas/applications/exodiff/map.C b/packages/seacas/applications/exodiff/map.C
index 2c29f7d4a1..297ba7057d 100644
--- a/packages/seacas/applications/exodiff/map.C
+++ b/packages/seacas/applications/exodiff/map.C
@@ -619,7 +619,7 @@ namespace {
       }
       else {
         Error(fmt::format("Unable to match {0} {1} in first file with {0} in second file.\n", type,
-                          file1_id_map[id1[i]]));
+                          fmt::group_digits(file1_id_map[id1[i]])));
       }
     }