diff --git a/matlab/read_variables.m b/matlab/read_variables.m
index 733fc217f..73262edef 100644
--- a/matlab/read_variables.m
+++ b/matlab/read_variables.m
@@ -17,7 +17,7 @@ function dyn_data_01=read_variables(file_name_01,var_names_01,dyn_data_01,xls_sh
 % all local variables have complicated names in order to avoid name
 % conflicts with possible user variable names
 
-% Copyright (C) 2005-2007 Dynare Team
+% Copyright (C) 2005-2009 Dynare Team
 %
 % This file is part of Dynare.
 %
@@ -42,47 +42,47 @@ function dyn_data_01=read_variables(file_name_01,var_names_01,dyn_data_01,xls_sh
         cd(path_name_02)
     end
     
-  dyn_size_01 = size(dyn_data_01,1);
-  var_size_01 = size(var_names_01,1);
-  if exist(file_name_01)
-    file_name_02 = [file_name_01 '.m'];
-    dyn_instr_01 = file_name_01;
-    eval(dyn_instr_01);
-    for dyn_i_01=1:var_size_01
-      dyn_tmp_01 = eval(var_names_01(dyn_i_01,:));
-      if length(dyn_tmp_01) > dyn_size_01 & dyn_size_01 > 0
+    dyn_size_01 = size(dyn_data_01,1);
+    var_size_01 = size(var_names_01,1);
+    if exist(file_name_01)
+        file_name_02 = [file_name_01 '.m'];
+        dyn_instr_01 = file_name_01;
+        eval(dyn_instr_01);
+        for dyn_i_01=1:var_size_01
+            dyn_tmp_01 = eval(var_names_01(dyn_i_01,:));
+            if length(dyn_tmp_01) > dyn_size_01 & dyn_size_01 > 0
+                cd(old_pwd)
+                error('data size is too large')
+            end
+            dyn_data_01(:,dyn_i_01) = dyn_tmp_01;
+        end
+    elseif exist([file_name_01 '.mat'])
+        file_name_02 = [file_name_01 '.mat']
+        s = load(file_name_01);
+        for dyn_i_01=1:var_size_01
+            dyn_tmp_01 = s.(deblank(var_names_01(dyn_i_01,:)));
+            if length(dyn_tmp_01) > dyn_size_01 & dyn_size_01 > 0
+                cd(old_pwd)
+                error('data size is too large')
+            end
+            dyn_data_01(:,dyn_i_01) = dyn_tmp_01;
+        end
+    elseif exist([file_name_01 '.xls'])
+        file_name_02 = [file_name_01 '.xls'];
+        [num,txt,raw] = xlsread(file_name_01,xls_sheet,xls_range);
+        for dyn_i_01=1:var_size_01
+            iv = strmatch(var_names_01(dyn_i_01,:),raw(1,:),'exact');
+            dyn_tmp_01 = [raw{2:end,iv}]';
+            if length(dyn_tmp_01) > dyn_size_01 & dyn_size_01 > 0
+                cd(old_pwd)
+                error('data size is too large')
+            end
+            dyn_data_01(:,dyn_i_01) = dyn_tmp_01;
+        end
+    else
         cd(old_pwd)
-	error('data size is too large')
-      end
-      dyn_data_01(:,dyn_i_01) = dyn_tmp_01;
+        error(['Can''t find datafile: ' file_name_01 ]);
     end
-  elseif exist([file_name_01 '.mat'])
-    file_name_02 = [file_name_01 '.mat']
-    s = load(file_name_01);
-    for dyn_i_01=1:var_size_01
-      dyn_tmp_01 = s.(deblank(var_names_01(dyn_i_01,:)));
-      if length(dyn_tmp_01) > dyn_size_01 & dyn_size_01 > 0
-        cd(old_pwd)
-	error('data size is too large')
-      end
-      dyn_data_01(:,dyn_i_01) = dyn_tmp_01;
-    end
-  elseif exist([file_name_01 '.xls'])
-    file_name_02 = [file_name_01 '.xls'];
-    [num,txt,raw] = xlsread(file_name_01,xls_sheet,xls_range);
-    for dyn_i_01=1:var_size_01
-      iv = strmatch(var_names_01(dyn_i_01,:),raw(1,:),'exact');
-      dyn_tmp_01 = [raw{2:end,iv}]';
-      if length(dyn_tmp_01) > dyn_size_01 & dyn_size_01 > 0
-        cd(old_pwd)
-	error('data size is too large')
-      end
-      dyn_data_01(:,dyn_i_01) = dyn_tmp_01;
-    end
-  else
-      cd(old_pwd)
-      error(['Can''t find datafile: ' file_name_01 ]);
-  end
-  cd(old_pwd)
-  disp(sprintf('Loading %d observations from %s\n',...
-	       size(dyn_data_01,1),file_name_02))
+    cd(old_pwd)
+    disp(sprintf('Loading %d observations from %s\n',...
+                 size(dyn_data_01,1),file_name_02))