What is a .SDW File And How To Open It – LizardTech (Simple Steps)

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Have you downloaded a file with .sdw extension, but you are not sure what it is? It is possible that you know what the file does, but you are unsure on how to open it. Thanks to this easy guide you will be able to find out what .sdw file extension is, how to open it and how to work with it.

What is a .SDW file?

The file extension .SDW is MrSID World File. It was developed by LizardTech. This file belongs to the text format and it is a GIS software file.

What to know

There are currently 2 software that can open the .sdw file on 1 platform.

How to open a .SDW file?

Below we will show you a step-by-step guide on how to open the .SDW file on various operating systems.

How to open a .SDW file on Windows (7, 8, 10)

To open the .sdw file on Windows, please follow these 4 easy steps.

1. The first step is to download the GDAL software. This software will be used for opening the file. Other software that can be used in opening this file is: Blue Marble Geographics Global Mapper and GDAL.

Step 2

Step 2: Locating your .SDW file

2. The second step is locating the downloaded file. The file can be usually found in your /download/ folder if you don’t remember where you have downloaded it to.

Step 3

Step 3: Choose “Open with”

3. In the third step, after locating your file, right click on it and click “Open with”.

Step 4

Step 4: Choose the software and click ok

4. In the fourth step, after clicking “Open with”, you should see the GDAL software that you have downloaded. Click on the software and click “OK”. Congratulations! You have opened your file on Windows.

Still cannot open the .SDW file?

If you cannot open the .SDW file, it is entirely possible that you are trying to open the wrong file. There are many similar file extensions that look like the .SDW file.sdx – Kivuto Solutions, .sdz – Spring, .sdz – National Cancer Institute, .se – Shuttle Document, .se1 – Astrodienst. You might be trying to open the wrong file, please recheck if you are trying to open the right file extension again.


In this article you have learned how to open the .SDW file with the GDAL, Blue Marble Geographics Global Mapper programs on Windows.