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Issue: You Can't Open UNKNOWN Files
You might've double-clicked on the file, to be greeted with the "Choose a program to open the file" message. In some cases, you might be able to open the file, but the contents may seem garbled and that's because it was written to be opened in a specific program. Of course, you can't open a UNKNOWN file with just any software. Not to worry - we have you covered!
Step 1: Find Out Which Software Uses UNKNOWN Files
Opening your UNKNOWN file starts with understanding which software uses a UNKNOWN extension. In many cases, different types of software may use the same file extensions, also known as file associations.
[None] is the most popular software package that uses UNKNOWN files. Therefore, your best bet would be to download that software package and use it to open your file.
Zipped files tend to require special handling and may require password access. Contact the file owner or the person who gave you the file for the password and unzip the file before attempting to open the contents.
Step 2: Learning More About UNKNOWN "File Type"
If you can't download [None] software, or if it doesn't work to open your UNKNOWN file, you may be able to use the file type as a clue to finding out how you can open it. Using a Windows PC, you can right-click and navigate to "Properties" and then to "Type of file". On a Mac, select "More info" and "Kind".
Most likely, you will find that UNKNOWN files are considered Misc Files. Because many programs packages utilize Misc Files, you might be able to find a program on your computer that handles those types of files.
If that still does not work, you may have to contact the associated software developer to find out how to open it. Unless you know the specific developer, you could contact one of these developers for assistance.
Please see our chart below of software titles and their developers:
| Software | Developer |
|---|---|
| [None] | PC Software Company |
Solution: Use File Magic to Open Your UNKNOWN File
Although some files must be opened in binary file format (ie. in the program or device for which it was developed), you might be able to open it with a universal software viewer. Depending on the exact file format, you could use a universal software viewer such as File Magic [download] to open your UNKNOWN file. Download File Magic today to open your UNKNOWN files and hundreds of other file types with one program.
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Download Universal File Viewer (File Magic)
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Opens all your files
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1File types that are unsupported can be opened in binary format.
