Filenary

What is it?

XML (Extensible Markup Language) is a structured text format that uses custom tags to describe data, used widely in configuration files, data exchange, and older web services.

How do I open it?

Opens as plain text in any text editor or browser, which will display it in a readable, collapsible tree.

Is it safe?

Yes for the data itself, though some XML-processing software is vulnerable to specially crafted files — a risk for the program parsing it, not for you simply opening it in a viewer.

Can I delete it?

Safe to delete once no longer needed, unless it's a config file a program relies on.