diff --git a/halfapi/lib/domain.py b/halfapi/lib/domain.py
index ecf3e0b..4126782 100644
--- a/halfapi/lib/domain.py
+++ b/halfapi/lib/domain.py
@@ -16,7 +16,7 @@ import yaml
 from starlette.exceptions import HTTPException
 
 from halfapi.lib import acl
-from halfapi.lib.responses import ORJSONResponse, ODSResponse
+from halfapi.lib.responses import ORJSONResponse, ODSResponse, XLSXResponse
 # from halfapi.lib.router import read_router
 from halfapi.lib.constants import VERBS
 
@@ -93,6 +93,14 @@ def route_decorator(fct: FunctionType, ret_type: str = 'json') -> Coroutine:
 
                 return ODSResponse(res)
 
+            if ret_type == 'xlsx':
+                res = fct(**fct_args)
+                assert isinstance(res, list)
+                for elt in res:
+                    assert isinstance(elt, dict)
+
+                return XLSXResponse(res)
+
             raise NotImplementedError
 
         except NotImplementedError as exc:
diff --git a/halfapi/lib/responses.py b/halfapi/lib/responses.py
index b493025..b1f3923 100644
--- a/halfapi/lib/responses.py
+++ b/halfapi/lib/responses.py
@@ -118,6 +118,8 @@ class HJSONResponse(ORJSONResponse):
         return super().render(list(content))
 
 class ODSResponse(Response):
+    file_type = 'ods'
+
     def __init__(self, d_rows: typing.List[typing.Dict]):
         try:
             import pyexcel as pe
@@ -140,10 +142,10 @@ class ODSResponse(Response):
 
             self.sheet = pe.Sheet(rows)
             self.sheet.save_to_memory(
-                file_type='ods',
+                file_type=self.file_type,
                 stream=ods_file)
 
-            filename = f'{date.today()}.ods'
+            filename = f'{date.today()}.{self.file_type}'
 
             super().__init__(
                 content=ods_file.getvalue(),
@@ -152,3 +154,6 @@ class ODSResponse(Response):
                     'Content-Disposition': f'attachment; filename="{filename}"'},
                 status_code = 200)
 
+
+class XLSXResponse(ODSResponse):
+    file_type = 'xlsx'
diff --git a/optional-requirements.txt b/optional-requirements.txt
index b28776d..835813a 100644
--- a/optional-requirements.txt
+++ b/optional-requirements.txt
@@ -1,2 +1,3 @@
 pyexcel>=0.6.3,<1
 pyexcel-ods>=0.5.6,<1
+pyexcel-xlsx=0.6.0,<1
diff --git a/setup.py b/setup.py
index 6891fd2..05b0603 100755
--- a/setup.py
+++ b/setup.py
@@ -68,6 +68,11 @@ setup(
             "requests",
             "pytest-asyncio",
             "pylint"
+        ],
+        "pyexcel":[
+            "pyexcel",
+            "pyexcel-ods3",
+            "pyexcel-xlsx"
         ]
     },
     entry_points={