.ZPLN

Introduction

A .zpln file is a note from Apache Zeppelin, a web-based notebook aimed at data processing with tools such as Apache Spark, SQL databases and Python. A note is made of paragraphs; each one starts by naming the interpreter that runs it, so one note can mix languages, and its results can be shown as tables or charts.

Older versions of Zeppelin stored each note as note.json in a folder named after the note’s ID. Version 0.9 changed to one file per note, named after the note with its ID and the .zpln extension.

Structure

A note is a JSON document. Its top level holds the note’s name, id, settings and a paragraphs list. Each paragraph holds its text, which begins with the interpreter name such as %python, %sql or %md, its display settings, and its last results, so a saved note shows its output without running again.

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