printable calendar free. The 2024 calendar is in Word format so it's easy to change the colours and the size to A3 or A5. The templates are saved in Microsoft Excel ".xlsx" format and can be used with the newer versions of Excel that support the XML document standard (Excel 2007, 2010, 2013, 2016, 2019, 2021 and Office 365). If you have one of the older versions of Excel that only supports the ".xls" format (Excel 2000, 2002/XP & 2003), or if you don't have Excel installed, use Microsoft Office Online or one of the Microsoft Excel/Microsoft Office alternatives FreeOffice PlanMaker, LibreOffice Calc, Google Sheets and others, which are all free of charge ( OpenOffice Calc unfortunately has minor formatting problems when opening our calendars). Also compatible with Microsoft Office for Mac (macOS) and Microsoft Office mobile for iPad/iOS, Android and Windows 10 mobile.