What is a NOT file?
A .NOT file can contain different types of data depending on the software that created it. Most often, it is a Notation File used by Notation Software programs, such as Notation Musician, to store music notation scores. However, the .NOT extension is also shared by other applications. It might be a Pronote school data file created by Index Éducation, an old WordPerfect for DOS document, a digital note from a Ratta SuperNote device, or a transcription notes file from Advantage Software Eclipse CAT.
How to open NOT files?
To open a .NOT file natively, you need the original software. For music scores, you can use Notation Musician or MakeMusic Finale. If the file is a school data backup, you need the Pronote software. Because there are so many different formats sharing this extension, you must know what kind of file you have before you try to open it.
Best practices and troubleshooting
Because the .NOT extension is shared by many unrelated programs, it is easy to get error messages when you try to open one. Do not rename the extension, as this will not convert the file. If you do not know the source of your .NOT file, do not guess the software. Instead, inspect the file contents to find out which software created it.
Identify and inspect with viewer.online
viewer.online/not can analyze .NOT files to identify the exact format and creator software, inspect the file structure, extract readable text, and check whether an online preview is available.
Summary
Because the .NOT extension has multiple possible meanings, we recommend viewer.online/not to identify the actual format of the user's file. Ultimately, viewer.online/not is useful for identifying, inspecting, and understanding .NOT files without installing software or dealing with compatibility problems.