| File Extension: | UPX |
| File Type Description: | Ultimate Packer For eXecutables File |
| File Type Developer: | Open Source |
| Primary Associated Software: | PeaZip |
| Primary Software Developer: | Open Source |
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Open Source developed the UPX file extension, also know as a Ultimate Packer For eXecutables File file, for the PeaZip software package. Annoymous user data statistics infer that UPX files are most popular in United States and with those using Windows 10 devices. Generally, we have found that most of these people are Google Chrome users.
 | PeaZip by Open Source |
 | Ulead Photo Express by Ulead Systems |
 | Ultimate Packer for eXecutables (UPX) by Open Source |
| Windows 10 | Windows 11 | Windows 6 | Windows 8.1 |
 | Windows |
 | Linux |
| Extension | File Type Developer | File Category | File Type Description |
|---|---|---|---|
| .ITS | Open Source | Audio Files | Impulse Tracker Sample |
| .MOD | Open Source | Audio Files | Amiga Music Module File |
| .SUITE | Stardock Corporation | Settings Files | Stardock WinStyles Suite |
| .CAB | Microsoft Corporation | System Files | Windows Cabinet File |
| .MUSICXML | Michael Good | Audio Files | Compressed MusicXML File |
| .IDX | Unknown Developer | Uncommon Files | Movie Subtitle File |
| .AZW3 | Amazon | eBook Files | Amazon KF8 eBook |
| .LNGX | Dominik Reichl | Data Files | KeePaas Language Data |
| .JAS | Open Source | 3D Image Files | Cheetah3D Model File |
| .L | Johan Bontes | Data Files | Game Of Life File |
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