diff --git a/src/main.py b/src/main.py
index a393fb7..1d1fda9 100644
--- a/src/main.py
+++ b/src/main.py
@@ -71,19 +71,51 @@ def copy_excel_file(source_path, destination_path, passwords):
     for sheet_name in source_wb.sheetnames:
         logging.debug(f"Copying sheet: {sheet_name}")
         source_sheet = source_wb[sheet_name]
-        dest_sheet = dest_wb.create_sheet(title=sheet_name)
-
-        for row in source_sheet.iter_rows():
-            for cell in row:
-                dest_cell = dest_sheet.cell(row=cell.row, column=cell.column)
-                dest_cell.value = cell.value
-                if cell.has_style:
-                    dest_cell.font = copy(cell.font)
-                    dest_cell.border = copy(cell.border)
-                    dest_cell.fill = copy(cell.fill)
-                    dest_cell.number_format = cell.number_format
-                    dest_cell.protection = copy(cell.protection)
-                    dest_cell.alignment = copy(cell.alignment)
+        
+        # Create new sheet in destination workbook
+        if source_sheet.sheet_type == 'chartsheet':
+            # For chartsheets, we need to create a worksheet instead
+            dest_sheet = dest_wb.create_sheet(title=sheet_name)
+            
+            # Copy chart data if available
+            if hasattr(source_sheet, 'chart') and source_sheet.chart:
+                # Copy chart title if exists
+                if hasattr(source_sheet.chart, 'title') and source_sheet.chart.title:
+                    dest_sheet['A1'] = f"Chart Title: {source_sheet.chart.title.text}"
+                
+                # Copy chart series data if exists
+                if hasattr(source_sheet.chart, 'series'):
+                    row = 2
+                    for idx, series in enumerate(source_sheet.chart.series, 1):
+                        # Write series title/name
+                        if hasattr(series, 'title'):
+                            dest_sheet.cell(row=row, column=1, value=f"Series {idx}: {series.title}")
+                        
+                        # Try to get values if available
+                        if hasattr(series, 'values'):
+                            try:
+                                for col, value in enumerate(series.values, 2):
+                                    dest_sheet.cell(row=row, column=col, value=value)
+                            except:
+                                pass  # Skip if values can't be accessed
+                        
+                        row += 1
+        else:
+            # Regular worksheet handling
+            dest_sheet = dest_wb.create_sheet(title=sheet_name)
+            
+            # Copy cell contents and styles
+            for row in source_sheet.iter_rows():
+                for cell in row:
+                    dest_cell = dest_sheet.cell(row=cell.row, column=cell.column)
+                    dest_cell.value = cell.value
+                    if cell.has_style:
+                        dest_cell.font = copy(cell.font)
+                        dest_cell.border = copy(cell.border)
+                        dest_cell.fill = copy(cell.fill)
+                        dest_cell.number_format = cell.number_format
+                        dest_cell.protection = copy(cell.protection)
+                        dest_cell.alignment = copy(cell.alignment)
 
     os.makedirs(os.path.dirname(destination_path), exist_ok=True)
     logging.debug(f"Destination directory ensured: {os.path.dirname(destination_path)}")