It should be so simple. Windows has a File Save dialog built in. Developers can call the API, with options to customise it if need be. Well, two APIs actually: the old Common File Dialog and the Common Item Dialog introduced in Windows Vista. But this was not good enough for the Office team and in Office 2010, Microsoft introduced the Backstage as a document management feature. ... If you are not so lucky and the location you want does not appear in the Backstage, you click Browse, and the old Windows Save dialog appears. In this case, instead of saving you time, the Backstage has added an extra step. There is a further wrinkle to the Backstage. In Options, you can set "Don't show the Backstage when opening or saving files with keyboard shortcut." As this option implies, this means you do not see the Backstage when invoking Save with Ctrl-S, but you do if you go to "File – Save As". However you do not if you go to "File – Save", even with an unsaved document. Consistency, who needs it? <https://www.theregister.co.uk/2019/08/30/saving_documents_in_microsoft_office_its_complicated/>