This closes #833, closes #845, and closes #1022, breaking changes

- Close spreadsheet and row's iterator required
- New options `WorksheetUnzipMemLimit` have been added
- Improve streaming reading performance, memory usage decrease about 93.7%

1 files changed, 12 insertions, 0 deletions

diff --git a/file.go b/file.go
index bfb6abf..c0092a2 100644
--- a/file.go
+++ b/file.go
@@ -82,6 +82,18 @@ func (f *File) SaveAs(name string, opt ...Options) error {
 	return f.Write(file)
 }
 
+// Close closes and cleanup the open temporary file for the spreadsheet.
+func (f *File) Close() error {
+	var err error
+	f.tempFiles.Range(func(k, v interface{}) bool {
+		if err = os.Remove(v.(string)); err != nil {
+			return false
+		}
+		return true
+	})
+	return err
+}
+
 // Write provides a function to write to an io.Writer.
 func (f *File) Write(w io.Writer) error {
 	_, err := f.WriteTo(w)