Open 009 file

009 files: what are they and how do I open them?

009 file icon Are you facing difficulties opening unknown files on your computer, or wondering exactly what this file is?
We've got the information and best software solutions for opening these files effortlessly.

.009 file type #1: Part 9 of a multi-volume archive in compressed file format

A 009 file extension is associated with several archivers or compression tools, which are using, or did use in the past, a 009 file extension for its multi-volume archive files.

Further details:

The 009 file extension is associated with several archivers or compression tools, which are using, or did use in the past, the 009 file extension for its multi-volume files or archives, such as Winrar (see part9.rar) or 7-Zip (see 7z.009).

The general file sequence is 001, 002, 003, etc.. and you will need all parts of the multi-volume archive to successfully extract the content.

Open file with:

7-zip icon


Popular open source file archiver with a high compression ratio

WinRAR icon


One of the oldest and most popular shareware file archiver and data compression utility

The Unarchiver icon

The Unarchiver

A decompression utility used to replace default unpacker software on Mac

ZipZag icon


A compression utility that supports over 250 archive formats

StuffIt Expander for Mac icon

StuffIt Expander for Mac

A Mac version of the popular decompression utility

Xarchiver icon


A Linux application used as frontend for popular compression tools

File Roller icon

File Roller

A file archive manager

PeaZip icon


A free open source archive utility

StuffIt Deluxe for Mac icon

StuffIt Deluxe for Mac

A backup and archive utility

StuffIt for Mac icon

StuffIt for Mac

Mac version of the popular utility

.009 file type #2: Typically, part 009 of a split archive or backup file type

Files with 009 extension may also be one of the many split (parts) of an archive or backup file. The number relates to the numbering of the sequence of split files.

Further details:

The 009 file extension is also used for split files. A part of larger file split using splitter software, such us HJSplit, WellTek 001 File Joiner & Splitter, SplitJoin or File Managers, such as Total Commander. Any additional split files use the 001,002,003...etc. file sequence.

You will need to merge them first with the use of the splitting/joining software tool, before you can open or work with them.

It can be also big game data file from various computer games.

Open file with:


A small program for spliting and merging files

HJSplit icon


A freeware file-splitting software

Total Commander icon

Total Commander

Highly popular file manager for Windows


A program for splitting small files

.009 file type #3: International S-57 Hydrographic data electronic navigation chart file type

Files with 009 extension can also be found as navigation charts in  International S-57 Hydrographic data format.

Further details:

The 009 file extension is also used for International S-57 Hydrographic Data Electronic Navigation Chart format.

A vector-based digital file containing marine features suitable for marine navigation. The file is based on the International Hydrographic Organization (IHO) S-57 standard.

The file extension, ".000," for a base NOAA ENC cell is used for updating. The first update for a cell will be ".001" the next ".002" and so forth. The file extension .031 is used for catalog data (metadata) relating to the chart data.

Open file with:

ArcGIS for Desktop Basic (ArcView) icon

ArcGIS for Desktop Basic (ArcView)

A GIS application used to work with geographic data

.009 file type #4: Winfunktion Mathematic v8.0 Julia fractal file type

A 009 file extension is related to the Winfunktion Mathematic v8.0 software. A 009 file contains julia fractal.

Further details:

The 009 file extension is associated with Winfunktion Mathematik v8.0.

The old German math program released in 1998. The 009 files are used for julia set mathematic fractals.

The current and latest version of Winfunktion Mathematik is 22. There are no information available if the 009 files are still used in the newest versions for julia set fractals.

Open file with:

Winfunktion Mathematik Plus

A German math software

What is the meaning of a file extension?

File extensions are characters that appear after the dot in a computer file's name. For example, the file "unknown-file.009" has the file extension "009". This is used to identify which program should open the file or what file type it is.
File extensions help you organize and manage files. They provide a quick and easy way to identify and associate the file type with the appropriate software.

We can help you open your file

In our database, we have collected a huge number of different file extensions, detailed descriptions, and programs that can be used to open or otherwise work with the file extensions listed in our database.
This database is an invaluable resource for users who want to understand better file extensions and what they can do with them. It also allows users to know different file types with the same purpose.

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We have verified every software listed in our database. The software listed in our database includes links to the developer's or software's website. These links should allow you to download the right program for each file type. Using verified software from reputable sources helps minimize the risk of malware and viruses infecting your computer.