.jnlp file: how to open it on Windows

3 Windows apps register the .jnlp extension. Install one of them to open the file with a double-click.

About the format

Format

JNLP file

Abbreviation

JNLP · Java Network Launching Protocol

MIME type

application/x-java-jnlp-file

Format data: freedesktop.org shared-mime-info and PRONOM (The National Archives, UK).

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Related guide: Change the default app for a file type in Windows