diff --git a/src/cardano_account_pandas_dumper/__main__.py b/src/cardano_account_pandas_dumper/__main__.py
index 77eb737..fc6094e 100644
--- a/src/cardano_account_pandas_dumper/__main__.py
+++ b/src/cardano_account_pandas_dumper/__main__.py
@@ -221,7 +221,7 @@ def main():
                 args.xlsx_output,
                 sheet_name=f"Transactions to block {args.to_block}",
                 index_label="Timestamp",
-                freeze_panes=(3 if args.raw_values else 2, 4),
+                freeze_panes=(3 if args.raw_values else 2, 3),
             )
         except OSError as exception:
             warnings.warn(f"Failed to write .xlsx file: {exception}")
diff --git a/src/cardano_account_pandas_dumper/cardano_account_pandas_dumper.py b/src/cardano_account_pandas_dumper/cardano_account_pandas_dumper.py
index ca04562..0695faa 100644
--- a/src/cardano_account_pandas_dumper/cardano_account_pandas_dumper.py
+++ b/src/cardano_account_pandas_dumper/cardano_account_pandas_dumper.py
@@ -246,8 +246,9 @@ def _parse_nft_mint(self, meta: blockfrost.utils.Namespace) -> str:
         for policy, _v in meta_dict.items():
             if policy == "version":
                 continue
+            result += f"{self._format_policy(policy)}:"
             for asset_name in _v.to_dict().keys():
-                result += f"{self._format_policy(policy)}@{asset_name} "
+                result += f"{asset_name} "
         return result
 
     def _format_message(self, tx_obj: blockfrost.utils.Namespace) -> str: