diff --git a/pdf_oralia/scripts.py b/pdf_oralia/scripts.py
index b73d284..875875f 100644
--- a/pdf_oralia/scripts.py
+++ b/pdf_oralia/scripts.py
@@ -3,6 +3,7 @@ from logging.config import dictConfig
 from pathlib import Path
 
 import click
+import pandas as pd
 
 from .extract import extract_save
 
@@ -62,5 +63,20 @@ def all(folder, dest):
 
 
 @main.command()
-def join():
-    pass
+@click.option("--folder", help="Tous les fichiers dans folder", default="./")
+@click.option("--dest", help="Où mettre les fichiers produits", default="")
+def join(folder, dest):
+    p = Path(folder)
+    dfs = {
+        "charge": [],
+        "locataire": [],
+    }
+    for file in p.glob("*.xlsx"):
+        year, month, immeuble, table = file.stem.split("_")
+        df = pd.read_excel(file).assign(annee=year, mois=month, immeuble=immeuble)
+        dfs[table].append(df)
+    for tablename, datas in dfs.items():
+        df = pd.concat(datas)
+        destination = Path(dest) / f"{tablename}.xlsx"
+        df.to_excel(destination, index=False)
+        logging.info(f"{destination} written")