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The OpenDocument format (ODF) 1.3 is now supported in Microsoft Word, Excel, and PowerPoint alongside the Office Open XML (OOXML) format that uses file extensions such as .docx, .xlsx, and .pptx. The ODF 1.3 specification adds support for many features already supported by the OOXML format, and now these features can be saved by Word, Excel, and PowerPoint.


With the latest Microsoft Office build 14420.20004 (version 2109) Microsoft previewed two new features to Office Insiders who are in the Windows Beta Channel. For more information on what has been changed (changelog), continue reading further.


Microsoft adds OpenDocument format 1.3 support to Microsoft Office Version 2109


What's new and improved in Microsoft Office Version 2109 (Build 14420.20004)

Word, Excel, PowerPoint

Support added for OpenDocument format 1.3

Support for the newest version of OpenDocument format (ODF) 1.3 is now available in Office! The ODF 1.3 specification adds support for many features already supported by the Office Open XML (OOXML) format; these features can now be saved by Word, Excel, and PowerPoint (file extensions .odt, .ods, and .odp). To use the new format, just click File > Save As and in the Save as type field, select the OpenDocument format.




Calendar To-Do bar view displays multiple months

In previous versions of Outlook, users could customize their view to show more than one “mini-month” at a time in the Calendar To-Do bar (a pane on the right side of the screen). Thanks to user feedback, we’ve brought this feature back! Now you can show multiple months both horizontally and vertically in the Calendar To-Do bar. To show the To Do bar in the Calendar module, click View > To Do Bar > Calendar, then resize the pane to show multiple months as needed.

Notable Fixes

We fixed an issue where an unexpected informational notification tip about shortening meetings by default appeared when creating meetings in Outlook, when the option was not configured by the Exchange administrator.



Word, Excel, Publisher

Notable Fixes

We fixed a stability issue related to graphics during recalculation.


Notable Fixes

We fixed an issue where, under rare circumstances, Excel could stop responding while calculating a workbook.

Office Suite

Notable Fixes

We fixed an issue where pictures copied from Word did not preserve the Lock Aspect Ratio setting when pasted into drawing canvases in other Office applications.


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