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J2W file extension

The table below provides useful information about the .j2w file extension. It answers questions such as:

  • What is the .j2w file?
  • What program do I need to open a .j2w file?
  • How can the .j2w file be opened, edited or printed?
  • How can I convert .j2w files to another format?

Table of Contents

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ ArcGIS JPEG2000 World Data

J2W file is an ArcGIS JPEG2000 World Data. J2W files are the ASCII files containing information for geocoding image data.
J2W format description not yet available
Category: GIS files
Application: ArcGIS
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
J2W aliases:
J2W related links:
J2W related extensions:
ArcInfo Binary Coverage

ArcInfo Band Interleaved by Line Image

ArcInfo Band Interleaved by Line Image

ArcInfo Band Sequential Image

ArcInfo ASCII Export

Geography Markup Language Document

MapInfo Table Document

FME Document

FME Feature Store

SIA dataMap GIS Export

Other types of files may also use the .j2w file extension.

🚫 The .j2w file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

h2w, j2, j2a, j2d, j2e, j2s, jw, jww

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Jw_cad for Windows Document
H2testw Data
Jazz Jackrabbit 2 Animation Data
Gargoyle Story Document
JustWrite Document
Jazz Jackrabbit Game Data
Jazz Jackrabbit 2 Episode Data
Jazz Jackrabbit 2 Language Data

🔴 Can't open a .j2w file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .j2w file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .j2w file extension, write to us!

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