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-rw-r--r--ext/win32ole/sample/excel2.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/ext/win32ole/sample/excel2.rb b/ext/win32ole/sample/excel2.rb
index 632882636a..8c4773daba 100644
--- a/ext/win32ole/sample/excel2.rb
+++ b/ext/win32ole/sample/excel2.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
require 'win32ole'
# -4100 is the value for the Excel constant xl3DColumn.