How Can I Open SUP Files?

The same file extension may be used by different file types and different programs, and sometimes it can be tough to figure out which program to use. When you need to open SUP files, start by double-clicking it. If it doesn’t open, or you receive an error message, take the following steps to try to open it.

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Step 1: Try Different Software Programs

If you can’t open SUP files, you may not have the right program installed on your computer. You can start by installing some of the most common programs associated with SUP files. A few of these associated software titles include Complete Works, WordPerfect Supplemental Dictionary, and Hallo Northern Sky Database Supplement (Han Kleijn). You can download one of these programs from the developer’s website.

Step 2: Use the File Type as a Hint

If you know the type of file you’re working with, that might help you figure out how to open it. SUP files are usually Developer Files. Look for a program on your computer that opens this type of file, and see if it will open the SUP file.

If you’re not sure of the file type, you can find it within the SUP file itself. Follow the steps below to find this information.

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On a Windows Computer:
  1. Right-click the file icon.
  2. Select “Properties” from the drop-down menu.
  3. Find the file type listed under “Type of File”.
On a Mac:
  1. Right-click on the file icon.
  2. Select “More Info” from the drop-down menu.
  3. Look for the file type listed under “Kind”.

Step 3: Ask a Developer

If you’re still having trouble opening your SUP file, a software developer may be able to help. If you know which software program should open your file, contact the developer who created that program. If you’re not sure which program to use, consult the list below to find the developers for the most common programs associated with SUP files:

Software Developer
Complete Works Toplevel Computing
WordPerfect Supplemental Dictionary Corel Corporation
Hallo Northern Sky Database Supplement (Han Kleijn) HNSKY
Supplemental Data Microsoft Developer
BoundsChecker Error Suppression Windows Software
Pro/ENGINEER Master Configuration File PTC
Startup Screen Bitmap Microsoft Programmer
Super Project Analyzer Project PC Software Company
HotMux Thermocouple Data Log File DCC Corporation
IFOEdit or VOBEdit Subpicture MPEG Elementary Stream Decision Developments

Step 4: Use a Universal File Viewer

If the above steps don’t help, a universal file viewer like File Magic (Download) might be able to help you open your SUP file. Universal file viewers can open a variety of file types, depending on the format. Just remember that some files are incompatible and will only open in binary format.


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