diff --git a/.gitignore b/.gitignore
index c2a90a3..2e5ace4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,32 +1,4 @@
 点名器.spec
-build/点名器/点名器.exe.manifest
-build/点名器/点名器.pkg
-build/点名器/Analysis-00.toc
-build/点名器/base_library.zip
-build/点名器/EXE-00.toc
-build/点名器/PKG-00.toc
-build/点名器/PYZ-00.pyz
-build/点名器/PYZ-00.toc
-build/点名器/Tree-00.toc
-build/点名器/Tree-01.toc
-build/点名器/Tree-02.toc
-build/点名器/warn-点名器.txt
-build/点名器/xref-点名器.html
-build/点名器/localpycs/pyimod01_archive.pyc
-build/点名器/localpycs/pyimod02_importers.pyc
-build/点名器/localpycs/pyimod03_ctypes.pyc
-build/点名器/localpycs/pyimod04_pywin32.pyc
-build/点名器/localpycs/struct.pyc
-dist/点名器.exe
-README_Vanila.html
-README_Vanila.md
-README.html
-.history/README_Vanila_20221107204953.md
-.history/README_Vanila_20221107204954.md
-.history/.gitignore_20221107235331
-.history/点名器_20221107235625.pyw
-.history/README_20221107235533.md
-.history/.gitignore_20221107235715
-.history/点名器_20221108000106.pyw
-.history/.gitignore_20221119173544
-dist/names.xls
+build/
+dist/
+.history/
\ No newline at end of file
diff --git a/点名器.pyw b/点名器.pyw
index 022956b..95b4542 100644
--- a/点名器.pyw
+++ b/点名器.pyw
@@ -35,9 +35,9 @@ elim_rows = 1
 percent_override = True
 
 try:
-    excel_data = excel.open_workbook(filename)
-    table = excel_data.sheets()[0]
-    win32api.SetFileAttributes(filename,win32con.FILE_ATTRIBUTE_HIDDEN)
+    with excel.open_workbook(filename) as excel_data:
+        table = excel_data.sheets()[0]
+        win32api.SetFileAttributes(filename,win32con.FILE_ATTRIBUTE_HIDDEN)
 except FileNotFoundError:
     msgbox.showerror('找不到数据库文件', '在相同目录下未能找到 names.xls 文件,请确认您的文件存在')
     sys.exit()