PK1 File Extension

PK1 file icon

XS Game

What is a PK1 file?

XS Game works with the PK1 file extension and is classified under Compressed Files and Game Files, with a total of 2085 files.

With the creation of the XS Game (PK1), Atari introduced file format along with 11 programs built for their use.

PK1 files are supported by Windows. You can open a PK1 file using one of 2 programs, for example Dragon UnPACKer and XS.

Programs that support PK1 files

How to open a PK1 file?

The most common reason why a PK1 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 PK1 files are Dragon UnPACKer and XS. To get the latest version of Dragon UnPACKer, open the Devilliers website where a universal installer for all operating systems is available.

Once setup is done, your operating system should assign Dragon UnPACKer as the default app for PK1 files.

Make Dragon UnPACKer the default PK1 viewer

Changing the default program in Windows

  1. Start by right-clicking on your PK1 file and selecting the "Open With" option. From there, click "Choose another app" to continue;
  2. Inside the popup window, scroll through the list of applications and specifically choose Dragon UnPACKer as the application to associate with your PK1 file;
  3. Check the "Always use this app" checkbox and click "OK".

Change the default app to open files on Mac

  1. Right click or use Control + Left Click on the desired PK1 file to access a dropdown menu of actions;
  2. Select "Open in application" and click "Other";
  3. Scroll down to the bottom of the window, where you will find the "Enable" menu. Default, "Recommended Programs" will be selected;
  4. In this menu, choose "All Programs" and navigate to Dragon UnPACKer. Check the box next to "Always open in app" to make it the default program.

Finding answers to PK1 file problems

If you encounter issues with PK1 files, don’t worry—most can be fixed with minor software adjustments. Refer to the troubleshooting tips below.

What are the signs that my PK1 file is damaged?

Corrupted PK1 compressed files may have one or more of the following symptoms:

  • Opening or processing the file in Dragon UnPACKer or other programs causes instability or crashes in the program;
  • The file shows errors when trying to open it or does not open completely;
  • Unexpected expansion of the total size of the PK1 file;
  • Working with the file triggers the display of error messages;

Why does Dragon UnPACKer quit or crash unexpectedly?

Dragon UnPACKer crashes can be attributed to outdated software. Make sure you have installed the latest updates for Devilliers products.

A computer restart is often the key to solving numerous common problems. That’s why, it is recommended to restart the computer before making any changes to the software settings.

What methods can be used to repair a damaged PK1 file?

Use a recovery program to open the damaged PK1 file and navigate to the "Repair" menu item. Wait for the recovery process to finish, as it will automatically repair damaged compressed files.