The File Extensions Database

.CFS File Extension

  • Developer by: Apache
  • Category: Misc Files

What is an .CFS file?

.CFS is Lucene Compound Index File

File used by Lucene, a text search engine library written in Java; used for saving multiple index files into a single compound archive; enables easier management of the index but may perform slightly slower.

NOTE: Beginning with version 1.4, Lucene uses CFS files by default.

Programs that open Lucene Compound Index File
File Type 2 CFS Console File
Developer by: Zaplots Category: Data Files Format: Binary

Program used by CFS Console, a console program used to install programs developed by Zaplots; contains a program that can be run in CFS console; commonly used for loading Zaplots games.

File Type 3 Compact File Set Archive
Developer by: Pismo Technic Category: Disk Image Files Format: Binary

Compressed container file created in the Compact File Set (CFS) format, an open format developed by Pismo Technic; stores data using a reduced implementation of the .ISO disc image standard; used for storing CD and DVD disc images, as well as for creating software distributions and large compressed file archives.

CFS files were designed to be easier to read than ISO files, which can be difficult to read due to the large range of supported storage options in the ISO specification. Since CFS files are compatible with the ISO file standard, they can be read by many existing ISO applications.

NOTE: The CFS format is based on the following standards: ISO-9660, Joliet Extensions, ISO-9660:1999, Compact ISO.

Programs that open Compact File Set Archive
Pismo Technic Pismo File Mount Audit Package
Pismo Technic PT ISO Tool

How to solve problems with CFS files

  • Associate the CFS file extension with the correct application. On :
    Windows: Right click on any CFS file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.CFS files". Mac: Right click (or Ctrl-click) the CFS file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .CFS is Lucene Compound Index File. Because only the current version supports the latest CFS file format. Search, therefore, e.g. on the Apache manufacturer website after an available .CFS is Lucene Compound Index File update.
  • To make sure that your CFS file is not corrupted or virus-infected, get the file again and scan it with antivirus software.