Don't lost hyperlinks when edit an exist xlsx file

examples/xlsx/hyperlinks/hyperlinks.pro

@@ -0,0 +1,9 @@
+TARGET = hyperlinks
+
+#include(../../../src/xlsx/qtxlsx.pri)
+QT+=xlsx
+
+CONFIG   += console
+CONFIG   -= app_bundle
+
+SOURCES += main.cpp

examples/xlsx/hyperlinks/main.cpp

@@ -0,0 +1,25 @@
+#include <QtCore>
+#include "xlsxdocument.h"
+
+int main()
+{
+    //![0]
+    QXlsx::Document xlsx;
+    //![0]
+
+    //![1]
+    xlsx.write("A1", "http://qt-project.org");
+    xlsx.write("A2", "http://qt-project.org/wiki#0f68b904e33d9ac04605aecc958bcf52");
+    xlsx.write("A3", "mailto:info@qt-project.org");
+    xlsx.write("A4", "file:///C:/User/test/abc.txt");
+    //![1]
+
+    //![2]
+    xlsx.save();
+    //![2]
+
+    QXlsx::Document xlsx2("Book1.xlsx");
+    xlsx2.saveAs("Book2.xlsx");
+
+    return 0;
+}

examples/xlsx/xlsx.pro

@@ -13,5 +13,6 @@ SUBDIRS = hello \
     richtext \
     conditionalformatting \
     worksheetoperations \
+    hyperlinks \
     demo