Last updated: October 13, 2017
When using the trial version of Office 365, every time you open an Office file, the latest version of the application gets automatically set as the default application for Word, Excel, or PowerPoint in all versions of Windows. For example, if you have Excel 2013 installed and are also running Office 365 trial version, then the workbook will open in Excel 2016.
We recommend using Office365 for the latest features. However, you may uninstall the trial version so that we open files with the version of Excel you installed.
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