SWL File Extension

SWL file icon

Macromedia Flash Format [Alternate]

What is a SWL file?

The SWL file extension is linked to Macromedia Flash Format [Alternate] and belongs to the Graphics Files category, which includes 556 files.

Adobe, the developer of the Macromedia Flash Format [Alternate] (SWL), has released file format and 81 programs designed to handle them.

SWL files are supported by Windows, Linux and Mac OS. There are 2 programs available to open a SWL file, including popular tools like Adobe Flash and Adobe Flash Player.

How to open a SWL file?

If you are having trouble opening a SWL file, it usually means the right software is not installed. Choose a program from the list that matches your operating system. Next, visit the official website of the developer, download the software, and install it on your device.

The most popular programs for working with SWL files are Adobe Flash and Adobe Flash Player. To install the current version of Adobe Flash, go directly to the official Adobe website. The universal package for all operating systems is available there.

After setup, the operating system should recognize SWL files and link them with Adobe Flash.

Setting Adobe Flash as default SWL viewer

Changing the default program in Windows

  1. Right-click on your SWL file and choose the "Open With" option. Then click "Choose another app" to continue the process;
  2. Choose Adobe Flash from the available applications listed in the pop-up window to set it as the default application to open your SWL file;
  3. Be sure to check the "Always use this app" checkbox, and then click "OK" to confirm your selection.

Change the default app for a file type in Mac

  1. Initiate a right click or use Control + left click on the desired SWL file to open a menu where you can select various actions;
  2. Select "Open in application" and click "Other";
  3. Scroll down to the bottom of the window, and there you will find the "Enable" menu. The default selection is "Recommended Programs";
  4. Choose "All Programs" within this menu and locate Adobe Flash. Check the box next to "Always open in app" to set it as the default program.

How to edit a SWL file?

To edit SWL files, you need to install specialized software that allows you not only to open but also to modify graphics files. Online SWL editors usually provide fewer features than software created specifically for Macromedia Flash Format [Alternate].

Best SWL editors in 2026

Based on your described criteria, here is a list of available SWL editors.

SWL Editor SoftwareDeveloperPlatformsOverall Rating
Adobe FlashAdobeWindows, Mac OS4.1 out of 5 (42 reviews)

Tips and tricks to solve problems with SWL files

SWL files can sometimes be tricky, but minor software adjustments usually resolve the issues. Refer to the tips below for guidance.

Are there any symptoms that my SWL file is damaged?

Corrupted SWL graphics files may have one or more of the following symptoms:

  • File hangs or crashes in Adobe Flash or other programs;
  • Error dialogs are displayed when interacting with the file;
  • The file does not open or opens with errors;
  • Unexplained increase in SWL file size;
  • Poor performance when editing a file in Adobe Flash;

Why does Adobe Flash crash or shut down frequently?

The absence of software updates can cause Adobe Flash to crash. It is recommended to install the latest available updates for Adobe products.

Restarting your computer is an essential troubleshooting step that can resolve many common problems. It is recommended to restart your computer before making any changes to the software settings.

Is there any specific software or utility that can help repair a damaged SWL file?

Start a data recovery program and open the damaged SWL file. Go to the menu and select the "Repair" option to repair the file. Then wait for the recovery process to complete, which allows you to automatically repair corrupted graphics files.