diff --git a/contact.xlsx b/contact.xlsx
index 8f29640..e63e48f 100644
Binary files a/contact.xlsx and b/contact.xlsx differ
diff --git a/db/DbManager.py b/db/DbManager.py
index d3d29fe..7106046 100644
--- a/db/DbManager.py
+++ b/db/DbManager.py
@@ -1,7 +1,9 @@
 import datetime
 import firebase_admin
+import xlsxwriter as xlsxwriter
 from firebase_admin import credentials, firestore
 
+import params
 from pojo.ReserveResultPojo import ReserveResultPojo, PublishType
 from pojo.SimInfoPojo import SimInfoPojo
 from pojo.contact_pojo import ContactPojo
@@ -20,6 +22,10 @@ class DataManager:
     def get_all_error_items(self):
         pass
 
+    def get_all_sim_infos(self):
+        sim_info_collection = self._db.collection(SIM_INFOS)
+        return sim_info_collection
+
     def get_all_successful_items(self):
         doc_ref = self._db.collection(str(datetime.date.today()))
         return doc_ref
@@ -46,5 +52,17 @@ class DataManager:
 
 
 if __name__ == '__main__':
-    manager = DataManager()
-    manager.save()
+    # Create a workbook and add a worksheet.
+    workbook = xlsxwriter.Workbook('sim_infos.xlsx')
+    worksheet = workbook.add_worksheet()
+    # Start from the first cell. Rows and columns are zero indexed.
+    row = 0
+    col = 0
+    for sim in params.firebase_store_manager.get_all_sim_infos().stream():
+        print(sim)
+        sim_pojo = SimInfoPojo.from_firestore_dict(sim.to_dict())
+        # Iterate over the data and write it out row by row.
+        worksheet.write(row, col, sim_pojo.phone[2:len(sim_pojo.phone)])
+        worksheet.write(row, col + 1, sim_pojo.ccid)
+        row += 1
+    workbook.close()
diff --git a/db/sim_infos.xlsx b/db/sim_infos.xlsx
new file mode 100644
index 0000000..ba5288a
Binary files /dev/null and b/db/sim_infos.xlsx differ
diff --git a/main.py b/main.py
index d62e314..bcea0b3 100644
--- a/main.py
+++ b/main.py
@@ -197,6 +197,6 @@ if __name__ == '__main__':
     init_logger()
     logger = logging.getLogger()
     logger.addHandler(logging.StreamHandler(stream=sys.stdout))
-    read_all_the_phone_number()
-    # start_listen()
-    # start_book()
+    # read_all_the_phone_number()
+    start_listen()
+    start_book()
diff --git a/pojo/SimInfoPojo.py b/pojo/SimInfoPojo.py
index 4598933..27e37b4 100644
--- a/pojo/SimInfoPojo.py
+++ b/pojo/SimInfoPojo.py
@@ -6,6 +6,14 @@ class SimInfoPojo:
         self.phone = phone
         self.ccid = ccid
 
+    @staticmethod
+    def from_firestore_dict(source):
+        phone = source['phone']
+        ccid = source['ccid']
+        result = SimInfoPojo(phone=phone, ccid=ccid)
+        result.id = id
+        return result
+
     def to_firestore_dict(self):
         dest = {
             u'phone': self.phone,