- This fix panic and incorrect cell read on some case

- Make unit test on Go 1.7
- API documentation updated

1 files changed, 1 insertions, 1 deletions

diff --git a/excelize.go b/excelize.go
index fafa57f..6e4e4d9 100644
--- a/excelize.go
+++ b/excelize.go
@@ -238,7 +238,7 @@ func checkSheet(ws *xlsxWorksheet) {
 	sheetData := xlsxSheetData{Row: make([]xlsxRow, row)}
 	row = 0
 	for _, r := range ws.SheetData.Row {
-		if r.R == row {
+		if r.R == row && row > 0 {
 			sheetData.Row[r.R-1].C = append(sheetData.Row[r.R-1].C, r.C...)
 			continue
 		}