ECW File Extension

Enhanced Compression Wavelet Image

File Type ecw
Developer ERDAS
Popularity
4.6 (34 votes)
Application Canvas
Category Raster Image Files
Format Binary

What is a ECW file?

The ECW file extension is linked to Enhanced Compression Wavelet Image and belongs to the Raster Image Files category, which includes 575 files.

With the creation of the Enhanced Compression Wavelet Image (ECW), ERDAS introduced file format along with 2 programs built for their use.

ECW files are supported by Windows, Linux and Mac OS. You can view a ECW file using one of 5 programs, for example ArcGIS, IrfanView and XnView.

File Signature

HEX code: 65 02 01. ASCII code: e.

Windows

Mac OS

XnView

Linux

XnView

How to open a ECW file?

The most common reason why a ECW file cannot be opened is the absence of required software. To fix this, select a compatible program from the list. Then visit the official developer website via the provided link, download the program, and install it on your system.

The most popular programs for working with ECW files are ArcGIS, IrfanView and XnView. To get the latest version of Canvas, open the ACD Systems website where a universal installer for all operating systems is available.

Following installation, ECW files should be automatically opened with Canvas.

Set Canvas as the default ECW handler

Changing the default program in Windows

Start by right-clicking on your ECW file and selecting the "Open With" option. From there, click "Choose another app" to continue;
In the pop-up window, find and select the Canvas application from the available options;
Make sure the "Always use this app" checkbox is checked and click "OK" to confirm your choice as the default app for opening ECW files.

Choose an app to open a file on Mac

Right click or use Control + left click on the desired ECW file to launch the file options menu;
Select "Open in application" and click "Other";
Look at the bottom of the window, where you will see the "Enable" menu. "Recommended Programs" will be selected as the default option;
Within this menu select "All Programs" and navigate to Canvas. Check the box next to "Always open in app" to make sure it’s the default option.

Convert to and from ECW

If a ECW file is difficult to handle, you might try converting it to formats such as JPG, JPEG, PNG, PDF, BMP or similar, which may be easier to work with.

Please note that after converting a ECW file, some functionality may differ from the original. However, in many cases, it can be converted back to its original format.

Using offline applications such as ArcGIS, XnView and IrfanView, you can convert ECW files to various formats without losing data quality.

Convert ECW to other file formats

Converting Files to ECW Format

Effective solutions for ECW file problems

When issues arise with ECW files, they can generally be fixed with small software tweaks. Use the troubleshooting tips below to help resolve them.

What are the signs that my ECW file is damaged?

Corrupted ECW raster image files may have one or more of the following symptoms:

Poor performance when editing a file in Canvas;
The file causes Canvas or other programs to hang or crash during operation;
Attempts to open the file result in errors or failed results;
Unexplained increase in ECW file size;
Working with the file triggers the display of error messages;

Why does Canvas quit or crash unexpectedly?

Canvas crashes can be attributed to outdated software. Make sure you have installed the latest updates for ACD Systems products.

Restarting your computer can resolve numerous common problems, so it should be the initial step before changing any software-related settings.

What methods can be used to repair a damaged ECW file?

Use a recovery program to open the damaged ECW file and navigate to the "Repair" menu item. Please be patient while the recovery process completes, which will automatically restore the damaged raster image files.

How to edit a ECW file?

To edit ECW files, you need to install specialized software that allows you not only to open but also to modify raster image files. Online ECW editors usually provide fewer features than software created specifically for Enhanced Compression Wavelet Image.

Best ECW editors in 2026

Taking into account the provided details, we have prepared a list of ECW editors that match your needs.

ECW Editor Software	Developer	Platforms	Overall Rating
Canvas	ACD Systems	Windows	4.6 out of 5 (36 reviews)
FME DESKTOP	Safe Software	Windows	4.1 out of 5 (41 review)

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