This closes #1379, cleanup stream writer temporary files by the `Close` function

- Fix error on inserting columns or rows on the worksheet which contains one cell merged cell range
- Fix getting incomplete rich text cell value in some cases
- Unit tests updated

1 files changed, 3 insertions, 1 deletions

diff --git a/file.go b/file.go
index 43a37dd..1469af0 100644
--- a/file.go
+++ b/file.go
@@ -97,6 +97,9 @@ func (f *File) Close() error {
 		}
 		return true
 	})
+	for _, stream := range f.streams {
+		_ = stream.rawData.Close()
+	}
 	return err
 }
 
@@ -195,7 +198,6 @@ func (f *File) writeToZip(zw *zip.Writer) error {
 		if err != nil {
 			return err
 		}
-		_ = stream.rawData.Close()
 	}
 	var err error
 	f.Pkg.Range(func(path, content interface{}) bool {