diff --git a/Main.py b/Main.py
index 3a9d51f..248a5e9 100644
--- a/Main.py
+++ b/Main.py
@@ -356,7 +356,8 @@ def updatehelp():
     # Custom save dialog for MacOS
     def save_figure(self, dpival, fig): # Thanks to Donal Fellows https://stackoverflow.com/questions/52282334/tkfiledialog-does-not-show-file-extension-options-on-osx10-12-6
         root = Tk.Toplevel()
-        filetypes = "{{png files} *.png} {{svg files} *.svg} {{pdf files} *.pdf} {{all files} *}"
+        filetypes = "{{{eps files} *.eps} {{jpg files} *.jpg} {{pdf files} *.pdf} {png files} *.png} {{ps files} *.ps}" \
+                    " {{svg files} *.svg} {{tif files} *.tif} {{all files} *}"
         filename = root.tk.eval('::tk::dialog::file:: save -filetypes {' + filetypes + '}')
         if filename == "":
             filename = None
@@ -2218,22 +2219,34 @@ def done_resizing(event):
     # Save Dialog
     def save(self):
         def single():
-            filetype = str(self.psv.combobox_file_type.get())
+            filetype = str(self.psv.file_type_str.get())
+            print(filetype)
+            print("lower "+filetype.lower())
             dpival = float(self.psv.combobox_dpi.get())
             default_pep = self.selected_peptides[0][self.states[0]][0]
+            if str(default_pep['Fragment']) == "" and str(default_pep['Modification'])=="":
+                initpath = self.protein + "_" + str(default_pep['Start']) + "-" + str(default_pep['End']) + "." + \
+                           filetype.lower()
+            elif str(default_pep['Fragment']) == "" and str(default_pep['Modification']) != "":
+                initpath = self.protein + "_" + str(default_pep['Start']) + "-" + str(default_pep['End']) + "_" + \
+                           str(default_pep['Modification']) + "." + filetype.lower()
+            elif str(default_pep['Fragment']) != "" and str(default_pep['Modification']) == "":
+                initpath = self.protein + "_" + str(default_pep['Start']) + "-" + str(default_pep['End']) + "_" + \
+                           str(default_pep['Fragment']) + "." + filetype.lower()
+            else:
+                initpath = self.protein + "_" + str(default_pep['Start']) + "-" + str(default_pep['End']) + "_" + \
+                           str(default_pep['Fragment']) + "_" + str(default_pep['Modification']) + "." + filetype.lower()
+            print("Path "+initpath)
             savefile = FileDialog.asksaveasfilename(
                 title="Choose save location",
-                initialfile=self.protein + "_" + str(default_pep['Start']) + "-" + str(default_pep['End']) + "_" +
-                            str(default_pep['Fragment']) + "_" + str(
-                    default_pep['Modification']) + "." + filetype.lower(),
-                initialdir=expanduser('~'),
-                filetypes=((filetype, '*.' + filetype.lower()), ("all files", "*.*")))
+                initialfile=initpath,
+                initialdir=expanduser('~'))
             self.view.figure.savefig(savefile, dpi=dpival, transparent=True)
             self.psv.top.destroy()
         def multi():
             # Prompting save directory
             savedir = FileDialog.askdirectory(title="Choose save location", initialdir=expanduser('~'))
-            filetype = str(self.psv.combobox_file_type.get())
+            filetype = str(self.psv.file_type_str.get())
             dpival = float(self.psv.combobox_dpi.get())
             n = 0
             for i in self.selected_peptides:
diff --git a/Model.py b/Model.py
index 99ec262..bb6a11d 100644
--- a/Model.py
+++ b/Model.py
@@ -75,6 +75,8 @@ def __init__(self, name='', empty=False, que=None):
                 self.assignIDs_CSV()
             if self.que is not None:
                 self.que.put(-1)
+        else:
+            self.filename = "merged"
 
     def dictify(self, order):
         newdict = {}
@@ -131,7 +133,8 @@ def detectType(self, infile):
                 for i in range(0,len(header)):
                     header[i] = header[i].rstrip()
                 print(header)
-                if set(header)=={'Protein','Start','End','Sequence','Modification','Fragment','MaxUptake','MHP','State','Exposure','Center','Center SD','Uptake','Uptake SD','RT','RT SD'}:
+                if all(i in header for i in ['Protein','Start','End','Sequence','Modification','Fragment','MaxUptake','MHP','State',
+                             'Exposure','Center','Center SD','Uptake','Uptake SD','RT','RT SD']):
                     print('File is DynamX State Style')
                     self.filetype = 'CSV'
                     self.readFile(infile, 'State')
@@ -1377,6 +1380,7 @@ def mergeFiles(self, dictlist, mergeeach):
             self.cor_factor[float(i[0])] = float(i[1])
         self.organizeData()
         self.cleanFiles()
+        self.assignIDs_CSV()
 
     # Populate sequence of residues with the best peptide information at each location
     def assignData(self, protein, state1, exposure, state2=None):
diff --git a/View.py b/View.py
index b5b341d..3c481cd 100644
--- a/View.py
+++ b/View.py
@@ -939,14 +939,14 @@ def __init__(self, parent, multi=False):
             label_file_type.grid(row=rownum, column=0)
             label_file_type.configure(text='''Type:''')
 
+            file_type_str = Tk.StringVar()
             combobox_file_type = ttk.Combobox(frame)
             combobox_file_type.grid(row=rownum, column=1)
-            list_file_type = ["PNG", "SVG", "PDF"]
-            combobox_file_type.configure(values=list_file_type)
-            combobox_file_type.set('PNG')
+            list_file_type = ["EPS","PDF","PNG","PS","SVG","TIF"]
+            combobox_file_type.configure(values=list_file_type,textvariable=file_type_str)
+            combobox_file_type.set("TIF")
             combobox_file_type.configure(takefocus="")
             combobox_file_type.configure(cursor="xterm")
-            self.combobox_file_type = combobox_file_type
             rownum = rownum + 1
 
             button_cancel = ttk.Button(frame)
@@ -959,6 +959,8 @@ def __init__(self, parent, multi=False):
 
             self.top = top
             self.combobox_dpi = combobox_dpi
+            self.combobox_file_type = combobox_file_type
+            self.file_type_str = file_type_str
             self.button_cancel = button_cancel
             self.button_save = button_save