> most people are using LibreOffice or Google Docs and not a single complaint about document exchange or document formats I had to edit a presentation urgently

> most people are using LibreOffice or Google Docs and not a single complaint about document exchange or document formats I had to edit a presentation urgently. It was nothing exotic, made with PowerPoint. LibreOffice failed to open half the images, as did Keynote (which I bought just for this purpose, because it was an emergency). I can't tell you what happened, just that the one time I needed LibreOffice (or similar) to work, it didn't. As for Office generally, I still haven't found a good substitute for Excel (sadly).