Microsoft Office

Microsoft Office is the web entry point to Word, Excel, PowerPoint and Outlook, and its formats remain the safe default when sending documents outside your organization.

That interoperability is the practical reason it persists: a .docx or .xlsx opens correctly for the recipient regardless of what they use, which alternatives cannot fully guarantee for complex documents.

The browser versions cover most everyday editing, with the desktop applications retaining features that the web versions do not implement.