I'm thinking of upgrading from Office 2010 to 2019. I need to know if I'll still be able to read and edit docx / docm and xlsx / xlsm files created with Office 2010 read/edit in Office 2019 and files created in Office 2019 (Except new funcitons, of course) read/edit in Office 2010, without any problem, no need to import or export or translation. Finally, is it worth the upgrade?
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