Commonly opened with
  • Internet Explorer (legacy)
Supported platforms
  • Windows
Editable?
Partially / with the right tool
Viewable without special tools?
Usually, yes
Commonly converted to
  • .ttf
  • .woff
Inherent format risk
Generally low risk
Safety guidance (not a guarantee)

Fonts are rendered by the operating system or an app and carry generally low risk. Still, only install fonts from sources you trust.

Check another filename

File extension lookup

No upload, no sign-up — everything is analyzed locally in your browser.

Frequently asked questions

What is a .eot file?

A compressed font format created by Microsoft specifically for embedding fonts in older versions of Internet Explorer.

Can I edit a .eot file?

Partially. .eot files can be edited with the right tool (such as Internet Explorer (legacy)), but not with just any text editor.

Does having a .eot extension mean the file is safe?

No single extension can guarantee that. Fonts are rendered by the operating system or an app and carry generally low risk. Still, only install fonts from sources you trust. Always consider where the file came from, not just its name.

Privacy: The lookup above runs entirely in your browser. Nothing you type is uploaded, logged, or sent anywhere.

← Back to the file extension lookup tool