File Extension Database

Open BK2 File

A BK2 file is a file format associated with specific applications and, in some cases, can possess multiple uses depending on the associated program. This article will explore the various formats and ways to open or utilize these files, describing how each use differs from each other.

Use with BizHawk

The BK2 file extension is used as a movie file with the BizHawk emulator, a multi-platform emulator with built-in TAS (Tool-Assisted Speedrun) recording and playback features. The BK2 files are created while recording game inputs during a TAS run across various gaming platforms, such as the Nintendo Entertainment System, the Super Nintendo Entertainment System, and others.

To open and utilize a BK2 file for Tool-Assisted Speedruns, you will need the BizHawk emulator installed on your computer. Follow these easy steps to utilize a BK2 file:

Download the latest version of BizHawk from its website or GitHub repository and install it on your system.
Launch BizHawk and open the game for which the TAS run is made.
Click "Open" in the "TAStudio" menu and navigate to the location of your BK2 file.
Select the BK2 file and open it to play the recorded TAS run.

Use with Kerbal Space Program

The BK2 file extension is also used for backup files created by Kerbal Space Program (KSP), a space flight simulation game. These backup files are not movie files like with the BizHawk emulator but instead contain saved game data. They help players to preserve their game progress in KSP, and in case of an error, players can restore their game to a previous point in time by using these backups.

To open and restore a BK2 file in Kerbal Space Program, follow these steps:

Navigate to your KSP saved game folder. Typically, the location is "Kerbal Space Program > saves > [Your Save Name]".
Find the ".sfs" file in the folder, which is the main save file for the game, and make a copy of it outside the folder in case the process doesn't work as intended.
Rename the ".bk2" file so that it has the ".sfs" extension.
Replace the old ".sfs" file with the renamed backup file and start the game.

BK2 File Important Information

When working with BK2 files, it is essential to know which application the file is associated with, as the content and use differ significantly. For example, a BK2 file related to BizHawk will not work with Kerbal Space Program and vice versa. Remember to have the appropriate software installed to open or utilize the BK2 files accurately.

In summary, the BK2 file extension has multiple uses, and understanding which application it is associated with is crucial. This article provided an overview of the usage, opening, and using BK2 files related to both BizHawk and Kerbal Space Program.

How Can I Open BK2 File on Windows

We researched and learned that the best way to open BK2 file is to find a BK2 file in question in Windows OS File Explorer and double click on it to launch the corresponding application.
If a BK2 file is not opened in an application and you instead get a "Windows can't open a file" error message you should try looking for an application which can open the file in question.
If you know the application which can open BK2 file then run it and see if there is a File->Open main menu option in the application.
If you don't know the application which function as BK2 file opener then try to search online for "BK2 viewer", "application to open BK2 file" or "open BK2 file" queries in the search engine you like.
Install the application you found and check if it can open BK2 file

How Can I Open BK2 File on Mac OS

We recommend to find a BK2 file in question in Mac OS Finder and double click on it to launch the corresponding application.
If a BK2 file is not opened in a Mac OS application and you instead get a "There is no application set to open the file" error message you can click on "Search App Store" in the error dialog and Mac OS will show you applications compatible with BK2 file.
If you know the Mac OS application which can work as BK2 file opener you can choose the "Choose Application..." option in the error box to associate the file extension and open BK2 file in it.
If you don't know the application which can open BK2 file then try to search for "BK2 viewer", "application to open BK2 file" or "read BK2 file" queries in the online search engine you like.
Install the application you found and check if it can read BK2 file

How Can I Open BK2 File on Android

If you downloaded a BK2 file on Android device you can open it by following steps below:

In the Android apps list on your Android device find "My Files" or "File manager" app and tap to start it.
Tap on "Downloads" folder inside the app.
You should see your downloaded BK2 file in that folder.
Tap on the file. If Android device supports opening the file you downloaded it will open in the corresponding app.
If file does not open you can look for the corresponding app that can open the file by searching Android App Store for the "BK2".
If you cannot open the file with the apps from Android App Store it is possible that the file could only be opened on desktop platforms such as Windows or Mac OS. Try searching for "BK2 viewer", "BK2 file reader" online and see if any desktop applications can open it.
It is also possible that the file you downloaded is outdated and is no longer supported.

How to Open BK2 File on iPhone or iPad

To open BK2 File on iOS device follow steps below:

We advies to open Files app on your iPhone or iPad device. You can find it by swiping down on the home screen and typing "Files" in the search bar.
Tap on the Downloads folder on the Files app home screen.
You will see all files that you recently downloaded. Tap on the BK2 file to view it.
If you have the right app that can open it it will automatically launch and open your file.
If you don't have the app which can open it you need to serch Apple app store for "BK2". This way you can find apps which can open BK2 files.
If this doesn't help it is possible that your file could be opened only by the desktop application. To find an app which can open it on desktop look for "BK2 viewer" or "BK2 file" online in your favorite search engine.

Populating this website with information and maintaining it is an ongoing process. We always welcome feedback and questions that can be submitted by visiting Contact Us page. However since there are many users visiting this website and because our team is quite small we may not be able to follow up personally on every request. Thank you for your understanding.