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1. Download another program.

Different file extensions work with different programs, and it can be difficult to figure out which program opens which files. Here are a few programs that usually work with BT3 files:

• Control Runner Button Configuration File

You can download one of these programs from the software developer’s website.

2. Look at the file type.

The file type can sometimes tell you which program might open the file. If you have BT3 files, they are most likely types of Uncommon Files. A program that works with Uncommon Files should open BT3 files.

Don’t know the file type? You can find it by right-clicking the file and selecting “Properties” or “More Info.” The file type will be listed under “Type of File” or “Kind”.

3. Check with the software developer.

Try contacting the developer of one of the programs mentioned above. They can help you figure out why your BT3 file won’t open. Some of the most common developers are listed below.

Software	Developer
Control Runner Button Configuration File	MomSoft

4. Install a universal file viewer.

Universal file viewers can open many different types of files, depending on the format. If your BT3 file won’t open, try installing a universal file viewer like File Magic (Download). Some files aren’t compatible with universal file viewers. These files will only open in binary file format.

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Download Universal File Viewer (File Magic) 

Optional Offer for File Magic by Solvusoft | EULA | Privacy Policy | Terms | Uninstall