diff --git a/operators/spreadsheet.py b/operators/spreadsheet.py
index ee3869b..d50b940 100644
--- a/operators/spreadsheet.py
+++ b/operators/spreadsheet.py
@@ -148,7 +148,7 @@ class VSETB_OT_spreadsheet_from_file(Operator):
 
         rows = [r for r in rows if any(r)]
 
-        print('rows', rows)
+        #print('rows', rows)
 
         cell_types = project.get_cell_types()
         for cell_name in rows[0]:
@@ -397,6 +397,9 @@ class VSETB_OT_import_spreadsheet(Operator):
 
             if spreadsheet.import_casting:
                 strip_settings.casting.clear()
+                strip_settings.casting.update()
+
+                #print('Clear Casting of strip', strip)
 
             for cell_name, cell_value in zip(header, row):
                 if not cell_name:
@@ -429,17 +432,22 @@ class VSETB_OT_import_spreadsheet(Operator):
                             continue
 
                         #print(norm_str(asset_name), norm_str(project.assets[0].tracker_name))
+                        norm_asset_name = norm_str(asset_name)
                             
                         if spreadsheet.use_custom_name:
-                            asset = next((a for a in project.assets if norm_str(a.get('metadata', {}).get(spreadsheet.custom_name)) == norm_str(asset_name)), None)
+                            asset = next((a for a in project.assets if norm_str(a.get('metadata', {}).get(spreadsheet.custom_name)) == norm_asset_name), None)
                         else:
-                            asset = next((a for a in project.assets if norm_str(a.tracker_name) == norm_str(asset_name)), None)
+                            asset = next((a for a in project.assets if norm_str(a.tracker_name) == norm_asset_name), None)
 
                         if asset:
-                            item = strip_settings.casting.add()
-                            item.name = asset.name 
-                            item.id = asset.id
-                            item['_name'] = asset.label
+                            item = next((item for item in strip_settings.casting if item.asset == asset), None)
+                            if item:
+                                item.instance += 1
+                            else:
+                                item = strip_settings.casting.add()
+                                item.name = asset.name 
+                                item.id = asset.id
+                                item['_name'] = asset.label
 
                             strip_settings.casting.update()
                         else:
@@ -546,7 +554,7 @@ class VSETB_OT_export_spreadsheet(Operator):
             cells = spreadsheet.cells
             rows.append([cell.name for cell in cells])
         
-        #print(rows)
+        print(rows)
         #raise Exception('')
 
         separator = spreadsheet.separator.replace('\\n', '\n').replace('\\t', '\t').replace('\\r', '\r')
@@ -568,13 +576,14 @@ class VSETB_OT_export_spreadsheet(Operator):
                         
                         if spreadsheet.use_custom_name and spreadsheet.use_custom_cells:
                             if asset.get('metadata', {}).get(spreadsheet.custom_name):
-                                asset_castings.append(asset['metadata'][spreadsheet.custom_name])
+                                asset_castings += [asset['metadata'][spreadsheet.custom_name]]*asset_casting.instance
                             else:
                                 self.report({'ERROR'}, f'The asset {asset.tracker_name} has no data {spreadsheet.custom_name}')
                         else:
-                            asset_castings.append(asset.tracker_name)
+                            asset_castings += [asset.tracker_name]*asset_casting.instance
 
                     row += [separator.join(asset_castings)]
+
                 elif cell.field_name == 'EPISODE':
                     row += [settings.active_episode.name]
                 elif cell.field_name == 'SEQUENCE':
@@ -614,12 +623,19 @@ class VSETB_OT_export_spreadsheet(Operator):
 
         #2023_04_11_kitsu_boris_ep01_shots
         export_path.parent.mkdir(parents=True, exist_ok=True)
+        if export_path.exists():
+            try: 
+                print('Removing File', export_path)
+                export_path.unlink()
+            except Exception:
+                self.report({'ERROR'}, f'You need to close the file {export_path}')
 
         if spreadsheet.format == 'csv':
             print('Writing .csv file to', export_path)
             with open(str(export_path), 'w', newline='\n', encoding='utf-8') as f:
                 writer = csv.writer(f, delimiter=spreadsheet.delimiter)
                 for row in rows:
+                    #print(row)
                     writer.writerow(row)
 
         elif spreadsheet.format == 'xlsx':