1 files changed, 4 insertions, 0 deletions
diff --git a/README.md b/README.md
index f1a57cd..a99e851 100644
--- a/README.md
+++ b/README.md
@@ -58,6 +58,8 @@ package main
 
 import (
     "fmt"
+    "os"
+    
     "github.com/Luxurioust/excelize"
 )
 
@@ -86,6 +88,8 @@ package main
 
 import (
     "fmt"
+    "os"
+    
     "github.com/Luxurioust/excelize"
 )