This closes #971, closes #972 and closes #974

- Escape XML character in the drop list
- Fix incorrect character count limit in the drop list
- Fix Excel time parse issue in some case
- Fix custom number format month parse issue in some case
- Fix corrupted file generated caused by concurrency adding pictures

1 files changed, 2 insertions, 2 deletions

diff --git a/col.go b/col.go
index 5171f34..088fac9 100644
--- a/col.go
+++ b/col.go
@@ -439,10 +439,10 @@ func (f *File) SetColStyle(sheet, columns string, styleID int) error {
 		for col := start; col <= end; col++ {
 			from, _ := CoordinatesToCellName(col, 1)
 			to, _ := CoordinatesToCellName(col, rows)
-			f.SetCellStyle(sheet, from, to, styleID)
+			err = f.SetCellStyle(sheet, from, to, styleID)
 		}
 	}
-	return nil
+	return err
 }
 
 // SetColWidth provides a function to set the width of a single column or