Spark

File Format
Name	Spark
Ontology	Electronic File Formats Archiving Spark
Extension(s)	.spk, .arc

Spark (Acorn Spark compressed archive) is a type of compressed file archive traditionally found on RISC OS systems, with file type DDC (Archive). Created by SparkFS, these archives were often used to transfer data in a form that could be unpacked by the freely redistributable SparkPlug tool. The format is a variant of ARC.

Software

• nspark - a tool to catalogue and unpack Spark archives (in source code form)
• nomarch v1.3+ can unpack Spark archives.
• [1], [2] → Spark, SparkPlug

Sample files

• Many of the files at The Arcade BBS Filebase (ftp)
  • E.g. Sprite Picture files → level1