diff --git a/examples/xlsx/calendar/calendar.pro b/examples/xlsx/calendar/calendar.pro
new file mode 100644
index 0000000..a986e00
--- /dev/null
+++ b/examples/xlsx/calendar/calendar.pro
@@ -0,0 +1,9 @@
+TARGET = calendar
+
+#include(../../../src/xlsx/qtxlsx.pri)
+QT+=xlsx
+
+CONFIG   += console
+CONFIG   -= app_bundle
+
+SOURCES += main.cpp
diff --git a/examples/xlsx/calendar/main.cpp b/examples/xlsx/calendar/main.cpp
new file mode 100644
index 0000000..5ceeb8c
--- /dev/null
+++ b/examples/xlsx/calendar/main.cpp
@@ -0,0 +1,145 @@
+#include <QtCore>
+#include "xlsxdocument.h"
+#include "xlsxformat.h"
+#include "xlsxcellrange.h"
+#include "xlsxworksheet.h"
+
+QTXLSX_USE_NAMESPACE
+
+int main(int argc, char **argv)
+{
+    QCoreApplication app(argc, argv);
+
+    //Select a proper locale
+    //QLocale::setDefault(QLocale(QLocale::English));
+
+    Document xlsx;
+    QDate today(QDate::currentDate());
+    for (int month=1; month<=12; ++month) {
+        xlsx.addSheet(QLocale().monthName(month));
+        xlsx.currentWorksheet()->setGridLinesVisible(false);
+
+        //the header row
+        Format headerStyle;
+        headerStyle.setFontSize(48);
+        headerStyle.setFontColor(Qt::darkBlue);
+        headerStyle.setHorizontalAlignment(Format::AlignHCenter);
+        headerStyle.setVerticalAlignment(Format::AlignVCenter);
+        xlsx.setRow(1, 80);
+        xlsx.write("A1", QString("%1 %2").arg(QLocale().monthName(month)).arg(today.year()));
+        xlsx.mergeCells("A1:N1", headerStyle);
+
+        //header with month titles
+        for (int day=1; day<=7; ++day) {
+            Format monthStyle;
+            monthStyle.setFontSize(12);
+            monthStyle.setFontColor(Qt::white);
+            monthStyle.setFontBold(true);
+            monthStyle.setHorizontalAlignment(Format::AlignHCenter);
+            monthStyle.setVerticalAlignment(Format::AlignVCenter);
+            monthStyle.setFillPattern(Format::PatternSolid);
+            monthStyle.setPatternBackgroundColor(Qt::darkBlue);
+
+            xlsx.setColumn(day*2-1, day*2-1, 5);
+            xlsx.setColumn(day*2, day*2, 13);
+            xlsx.write(2, day*2-1, QLocale().dayName(day));
+            xlsx.mergeCells(CellRange(2, day*2-1, 2, day*2), monthStyle);
+        }
+
+        QColor borderColor = QColor(Qt::gray);
+
+        Format weekendLeftStyle;
+        weekendLeftStyle.setFontSize(14);
+        weekendLeftStyle.setFontBold(true);
+        weekendLeftStyle.setHorizontalAlignment(Format::AlignLeft);
+        weekendLeftStyle.setVerticalAlignment(Format::AlignTop);
+        weekendLeftStyle.setPatternBackgroundColor(QColor("#93CCEA"));
+        weekendLeftStyle.setLeftBorderStyle(Format::BorderThin);
+        weekendLeftStyle.setLeftBorderColor(borderColor);
+        weekendLeftStyle.setBottomBorderStyle(Format::BorderThin);
+        weekendLeftStyle.setBottomBorderColor(borderColor);
+
+        Format weekendRightStyle;
+        weekendRightStyle.setHorizontalAlignment(Format::AlignHCenter);
+        weekendRightStyle.setVerticalAlignment(Format::AlignTop);
+        weekendRightStyle.setPatternBackgroundColor(QColor("#93CCEA"));
+        weekendRightStyle.setRightBorderStyle(Format::BorderThin);
+        weekendRightStyle.setRightBorderColor(borderColor);
+        weekendRightStyle.setBottomBorderStyle(Format::BorderThin);
+        weekendRightStyle.setBottomBorderColor(borderColor);
+
+        Format workdayLeftStyle;
+        workdayLeftStyle.setHorizontalAlignment(Format::AlignLeft);
+        workdayLeftStyle.setVerticalAlignment(Format::AlignTop);
+        workdayLeftStyle.setPatternBackgroundColor(Qt::white);
+        workdayLeftStyle.setLeftBorderStyle(Format::BorderThin);
+        workdayLeftStyle.setLeftBorderColor(borderColor);
+        workdayLeftStyle.setBottomBorderStyle(Format::BorderThin);
+        workdayLeftStyle.setBottomBorderColor(borderColor);
+
+        Format workdayRightStyle;
+        workdayRightStyle.setHorizontalAlignment(Format::AlignHCenter);
+        workdayRightStyle.setVerticalAlignment(Format::AlignTop);
+        workdayRightStyle.setPatternBackgroundColor(Qt::white);
+        workdayRightStyle.setRightBorderStyle(Format::BorderThin);
+        workdayRightStyle.setRightBorderColor(borderColor);
+        workdayRightStyle.setBottomBorderStyle(Format::BorderThin);
+        workdayRightStyle.setBottomBorderColor(borderColor);
+
+        Format greyLeftStyle;
+        greyLeftStyle.setPatternBackgroundColor(Qt::lightGray);
+        greyLeftStyle.setLeftBorderStyle(Format::BorderThin);
+        greyLeftStyle.setLeftBorderColor(borderColor);
+        greyLeftStyle.setBottomBorderStyle(Format::BorderThin);
+        greyLeftStyle.setBottomBorderColor(borderColor);
+
+        Format greyRightStyle;
+        greyRightStyle.setPatternBackgroundColor(Qt::lightGray);
+        greyRightStyle.setRightBorderStyle(Format::BorderThin);
+        greyRightStyle.setRightBorderColor(borderColor);
+        greyRightStyle.setBottomBorderStyle(Format::BorderThin);
+        greyRightStyle.setBottomBorderColor(borderColor);
+
+        int rownum = 3;
+        for (int day=1; day<=31; ++day) {
+            QDate date(today.year(), month, day);
+            if (!date.isValid())
+                break;
+            xlsx.setRow(rownum, 100);
+            int dow = date.dayOfWeek();
+            int colnum = dow*2-1;
+
+            if (dow <= 5) {
+                xlsx.write(rownum, colnum, day, workdayLeftStyle);
+                xlsx.write(rownum, colnum+1, QVariant(), workdayRightStyle);
+            } else {
+                xlsx.write(rownum, colnum, day, weekendLeftStyle);
+                xlsx.write(rownum, colnum+1, QVariant(), weekendRightStyle);
+            }
+
+            if (day == 1 && dow != 1) {//First day
+                for (int i=1; i<dow; ++i) {
+                    xlsx.write(rownum, i*2-1, QVariant(), greyLeftStyle);
+                    xlsx.write(rownum, i*2, QVariant(), greyRightStyle);
+                }
+            } else if (day == date.daysInMonth() && dow != 7) {//Last day
+                for (int i=dow+1; i<=7; ++i) {
+                    xlsx.write(rownum, i*2-1, QVariant(), greyLeftStyle);
+                    xlsx.write(rownum, i*2, QVariant(), greyRightStyle);
+                }
+            }
+
+            if (dow == 7)
+                rownum++;
+        }
+
+    }
+
+    xlsx.saveAs("Book1.xlsx");
+
+    //Make sure that read/write works well.
+    Document xlsx2("Book1.xlsx");
+    xlsx2.saveAs("Book2.xlsx");
+
+    return 0;
+}
diff --git a/examples/xlsx/xlsx.pro b/examples/xlsx/xlsx.pro
index c0bedc4..7af77f8 100644
--- a/examples/xlsx/xlsx.pro
+++ b/examples/xlsx/xlsx.pro
@@ -16,6 +16,7 @@ SUBDIRS = hello \
     hyperlinks \
     chart \
     chartsheet \
+    calendar \
     demo
 
 qtHaveModule(widgets): SUBDIRS += xlsxwidget