| File Extension: | PFO |
| File Type Description: | Private Folder |
| File Type Developer: | Pismo Technic Inc. |
| Primary Associated Software: | Pismo File Mount Audit Package |
| Primary Software Developer: | Pismo Technic Inc. |
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Private Folder files were originally developed by Pismo Technic Inc. for the Pismo File Mount Audit Package software application. Our internal web tracking data indicates that Windows 10 operating system users, and those living in United States, are the most likely to use Private Folder files. Google Chrome is the predominant internet browser used by this population.
 | Pismo File Mount Audit Package by Pismo Technic Inc. |
| Windows 10 | Windows 11 | Windows 6 | Windows 8.1 |
 | Windows |
 | Mac |
 | Linux |
| Extension | File Type Developer | File Category | File Type Description |
|---|---|---|---|
| .CFS | Apache HTTP Project Management Committee | Uncommon Files | Lucene Compound Index File |
| .KDE | Kaspersky Lab | Encoded Files | KryptoStorage Container File |
| .MONO | SourceForge | Encoded Files | Monolith Munged Encoded Data |
| .HSF | Tech Soft 3D | CAD Files | HOOPS Stream Format File |
| .MFS | Open Source | Encoded Files | MetFS Encrypted File System |
| .RXF | Resort Software | Data Files | Recipe Exchange Format |
| .UUD | Open Source | Encoded Files | UUDecoded File |
| .UU | Open Source | Encoded Files | Uuencoded File |
| .DCF | Sony Mobile Communications | Audio Files | DRM Content Format File |
| .MME | Smith Micro Software | Encoded Files | Multipurpose Internet Mail Extensions |
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