update docs and improve compatibility

1 files changed, 1 insertions, 1 deletions

diff --git a/stream.go b/stream.go
index 81dea1e..bdc0d26 100644
--- a/stream.go
+++ b/stream.go
@@ -72,7 +72,7 @@ type StreamWriter struct {
 //
 func (f *File) NewStreamWriter(sheet string) (*StreamWriter, error) {
 	sheetID := f.getSheetID(sheet)
-	if sheetID == 0 {
+	if sheetID == -1 {
 		return nil, fmt.Errorf("sheet %s is not exist", sheet)
 	}
 	sw := &StreamWriter{