From 868cf8edc086193d095f0e7885be78d10e0aeb8d Mon Sep 17 00:00:00 2001
From: Sergey Shuchkin <sergey.shuchkin@gmail.com>
Date: Fri, 3 Sep 2021 22:12:48 +0600
Subject: [PATCH] 1.0.21

---
 CHANGELOG.md          | 4 ++++
 src/SimpleXLSXGen.php | 4 ++--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8da8420..41cbdd6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## 1.0.21 (2021-09-03)
+
+*  Fixed saveAs / downloadAs / etc methods more than once
+
 ## 1.0.20 (2021-07-29)
 
 * Fixed sheet names duplicates (Page, Page (1), Page (2)...) 
diff --git a/src/SimpleXLSXGen.php b/src/SimpleXLSXGen.php
index f653862..14d6ac5 100644
--- a/src/SimpleXLSXGen.php
+++ b/src/SimpleXLSXGen.php
@@ -249,8 +249,8 @@ class SimpleXLSXGen {
 					$this->SI[] = 'No Data';
 				}
 				$si_cnt = count($this->SI);
-				$this->SI = '<si><t>'.implode("</t></si>\r\n<si><t>", $this->SI).'</t></si>';
-				$template = str_replace(['{CNT}', '{STRINGS}'], [ $si_cnt, $this->SI ], $template );
+				$si = '<si><t>'.implode("</t></si>\r\n<si><t>", $this->SI).'</t></si>';
+				$template = str_replace(['{CNT}', '{STRINGS}'], [ $si_cnt, $si ], $template );
 				$this->_writeEntry($fh, $cdrec, $cfilename, $template);
 				$entries++;
 			} elseif ( $cfilename === 'xl/worksheets/sheet1.xml' ) {