The primary program used to open .pptx files is Microsoft PowerPoint, which is specifically designed for creating and viewing PowerPoint presentations and offers full support for the formatting in .pptx files. Additionally, .pptx files can also be opened by alternative programs such as Google Slides, which allows viewing and editing through a web browser without requiring PowerPoint software installed on a device. There are also dedicated PPTX viewer applications available for Windows and mobile platforms that enable quick viewing of these files without full PowerPoint functionality. Summary of options to open .pptx files:
- Microsoft PowerPoint (best support and features)
- Google Slides (online, browser-based)
- PPTX Viewer apps (standalone viewers without PowerPoint)
- Other presentation software with .pptx support
These options provide flexibility depending on the device and software availability.
