Conclusion Opening an ODS file on PC or Mac is a straightforward process if you know which application to use. LibreOffice and OpenOffice are the top choices for full compatibility with ODS file ...

These free add-ins for Word, Excel, and PowerPoint enable those apps to open and save their ODF counterparts (which typically have .ODT, .ODS, and .ODP extensions, respectively).

Unlike ODT, ODS and ODP files can't be saved or loaded with regular file dialogs in Powerpoint or Excel. Instead, ODF import and export buttons are available from a toolbar added by the plugin.