| File Extension: | NIFF |
| File Type Description: | Notation Interchange File Format |
| File Type Developer: | Personal Composer |
| Primary Associated Software: | Personal Composer |
| Primary Software Developer: | Personal Composer |
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The NIFF file extension is a Notation Interchange File Format file developed originally by Personal Composer for Personal Composer. Our internal web tracking data indicates that Windows 10 operating system users, and those living in United States, are the most likely to use Notation Interchange File Format files. Generally, we have found that most of these people are Google Chrome users.
 | Mozart by David Webber |
 | Personal Composer by Personal Composer |
| Windows 10 | Windows 11 | Windows 6 | Windows 8.1 |
 | Windows |
| Extension | File Type Developer | File Category | File Type Description |
|---|---|---|---|
| .PC | Personal Composer | Data Files | Personal Composer File |
| .SFPACK | Megota Software | Audio Files | Packed SoundFont File |
| .FK | Flash-Integro LLC | Audio Files | Flash Streamed Media File |
| .NWC | NoteWorthy Software | Audio Files | NoteWorthy Composer File |
| .XWV | Valve | Audio Files | Valve Xbox360 Audio Data |
| .404 | Muon Software | Audio Files | Muon DS404 Audio Bank |
| .ZPA | zplane.development GmbH & Co. KG | Audio Files | Vielklang Audio Metadata File |
| .ETM | Etreppid Technologies, LLC | Audio Files | eTreppid Audio File |
| .CAF | Apple | Audio Files | Apple Core Audio File |
| .ECELP7470 | Nuera Communications | Audio Files | Nuera Audio File |
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