diff --git a/src/otoole/cli.py b/src/otoole/cli.py
index c0305f7..e1d971a 100644
--- a/src/otoole/cli.py
+++ b/src/otoole/cli.py
@@ -172,7 +172,7 @@ def get_parser():
     result_parser.add_argument(
         "to_format",
         help="Result data format to convert to",
-        choices=sorted(["csv"]),
+        choices=sorted(["csv", "excel"]),
     )
     result_parser.add_argument(
         "from_path", help="Path to file or folder to convert from"
diff --git a/src/otoole/convert.py b/src/otoole/convert.py
index 3cecd34..b1f1886 100644
--- a/src/otoole/convert.py
+++ b/src/otoole/convert.py
@@ -90,7 +90,7 @@ def convert_results(
     from_format : str
         Available options are 'cbc', 'cplex' and 'gurobi'
     to_format : str
-        Available options are 'csv'
+        Available options are 'csv', 'excel'
     from_path : str
         Path to cbc, cplex or gurobi solution file
     to_path : str
@@ -125,7 +125,11 @@ def convert_results(
     write_defaults = True if write_defaults else False
 
     if to_format == "csv":
-        write_strategy = WriteCsv(
+        write_strategy: WriteStrategy = WriteCsv(
+            user_config=user_config, write_defaults=write_defaults
+        )
+    elif to_format == "excel":
+        write_strategy = WriteExcel(
             user_config=user_config, write_defaults=write_defaults
         )
     else: