diff --git a/pywxdump/dbpreprocess/parsingMicroMsg.py b/pywxdump/dbpreprocess/parsingMicroMsg.py
index 70e5947..2e2ebb1 100644
--- a/pywxdump/dbpreprocess/parsingMicroMsg.py
+++ b/pywxdump/dbpreprocess/parsingMicroMsg.py
@@ -201,7 +201,7 @@ class ParsingMicroMsg(DatabaseBase):
         for row in result:
             # 获取用户名、昵称、备注和聊天记录数量
             username, LastReadedCreateTime, LastReadedSvrId = row
-            LastReadedCreateTime = timestamp2str(LastReadedCreateTime / 1000) if LastReadedCreateTime else None
+            LastReadedCreateTime = timestamp2str(LastReadedCreateTime) if LastReadedCreateTime else None
             users.append(
                 {"wxid": username, "LastReadedCreateTime": LastReadedCreateTime, "LastReadedSvrId": LastReadedSvrId})
         return users
diff --git a/pywxdump/dbpreprocess/utils.py b/pywxdump/dbpreprocess/utils.py
index bee4f9e..8cb067b 100644
--- a/pywxdump/dbpreprocess/utils.py
+++ b/pywxdump/dbpreprocess/utils.py
@@ -18,7 +18,7 @@ import lxml.etree as ET  # 这个模块更健壮些，微信XML格式有时有
 from collections import defaultdict
 
 
-def type_converter(type_id_or_name: [str,tuple]):
+def type_converter(type_id_or_name: [str, tuple]):
     """
     消息类型ID与名称转换
     名称(str)=>ID(tuple)
@@ -37,26 +37,46 @@ def type_converter(type_id_or_name: [str,tuple]):
         (48, 0): "位置",
 
         (49, 0): "文件",
-        (49, 1): "类似文字消息而不一样的消息",
-        (49, 5): "卡片式链接",
+        (49, 1): "粘贴的文本",
+        (49, 3): "(分享)音乐",
+        (49, 4): "(分享)卡片式链接",
+        (49, 5): "(分享)卡片式链接",
         (49, 6): "文件",
+        (49, 7): "游戏相关",
         (49, 8): "用户上传的GIF表情",
+        (49, 15): "未知-49,15",
+        (49, 17): "位置共享",
         (49, 19): "合并转发的聊天记录",
-        (49, 33): "分享的小程序",
-        (49, 36): "分享的小程序",
-        (49, 40): "分享收藏夹",
+        (49, 24): "(分享)笔记",
+        (49, 33): "(分享)小程序",
+        (49, 36): "(分享)小程序",
+        (49, 40): "(分享)收藏夹",
+        (49, 44): "(分享)小说(猜)",
+        (49, 50): "(分享)视频号名片",
+        (49, 51): "(分享)视频号视频",
         (49, 53): "接龙",
-        (49, 57): "带有引用的文本消息",
-        (49, 63): "视频号直播或直播回放等",
+        (49, 57): "引用回复",
+        (49, 63): "视频号直播或直播回放",
+        (49, 74): "文件(猜)",
         (49, 87): "群公告",
         (49, 88): "视频号直播或直播回放等",
         (49, 2000): "转账消息",
         (49, 2003): "赠送红包封面",
 
         (50, 0): "语音通话",
+        (65, 0): "企业微信打招呼(猜)",
+        (66, 0): "企业微信添加好友(猜)",
+
         (10000, 0): "系统通知",
+        (10000, 1): "消息撤回1",
         (10000, 4): "拍一拍",
-        (10000, 8000): "系统通知"
+        (10000, 5): "消息撤回5",
+        (10000, 6): "消息撤回6",
+        (10000, 33): "消息撤回33",
+        (10000, 36): "消息撤回36",
+        (10000, 57): "消息撤回57",
+        (10000, 8000): "邀请加群",
+        (11000, 0): "未知-11000,0"
     })
 
     if isinstance(type_id_or_name, tuple):
@@ -99,7 +119,7 @@ def timestamp2str(timestamp):
     """
     if isinstance(timestamp, str) and timestamp.isdigit():
         timestamp = int(timestamp)
-    elif isinstance(timestamp, int):
+    elif isinstance(timestamp, int) or isinstance(timestamp, float):
         pass
     else:
         return timestamp