From 48b8bac126eac6b1ec5209a14c7a50ef2d6fbaf8 Mon Sep 17 00:00:00 2001
From: Wing Gao <wing.gao@live.com>
Date: Fri, 27 Oct 2017 22:05:00 +0800
Subject: fix OpenReader no sheet error

---
 excelize.go | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/excelize.go b/excelize.go
index 73c6eda..4b5eabe 100644
--- a/excelize.go
+++ b/excelize.go
@@ -39,8 +39,6 @@ func OpenFile(filename string) (*File, error) {
 		return nil, err
 	}
 	f.Path = filename
-	f.sheetMap = f.getSheetMap()
-	f.Styles = f.stylesReader()
 	return f, nil
 }
 
@@ -60,12 +58,15 @@ func OpenReader(r io.Reader) (*File, error) {
 	if err != nil {
 		return nil, err
 	}
-	return &File{
+	f := &File{
 		checked:    make(map[string]bool),
 		Sheet:      make(map[string]*xlsxWorksheet),
 		SheetCount: sheetCount,
 		XLSX:       file,
-	}, nil
+	}
+	f.sheetMap = f.getSheetMap()
+	f.Styles = f.stylesReader()
+	return f, nil
 }
 
 // setDefaultTimeStyle provides function to set default numbers format for
-- 
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