| File Extension: | UDT |
| File Type Description: | User Defined Type Data |
| File Type Developer: | wyDay |
| Primary Associated Software: | WyBuild |
| Primary Software Developer: | wyDay |
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The UDT file extension is a User Defined Type Data file developed originally by wyDay for WyBuild. According to our internal data, User Defined Type Data files are most popular with users in China, with a majority of them running Windows 10. Generally, we have found that most of these people are Google Chrome users.
| Windows 10 | Windows 11 | Windows 6 | Windows 8.1 |
 | Windows |
| Extension | File Type Developer | File Category | File Type Description |
|---|---|---|---|
| .WYC | wyDay | Data Files | WyBuild Version Number |
| .OTX | Open Source | Data Files | TheWord Encrypted Old Testament Text Module |
| .IFN | WaveMetrics | Data Files | IGOR Pro Formatted Notebook File |
| .PIZ | Winrar | Compressed Files | Zipped File |
| .LT | Andrew Jewett | Data Files | Moltemplate Data File |
| .PP | Geckonization | Data Files | Pocket Physics Sketch File |
| .WAC | Wacom | Data Files | Inkling Sketch XML File |
| .OPJ | Cadence Design Systems | CAD Files | OrCAD Project File |
| .72 | PTC | Data Files | Creo Elements/Pro Versioned Data |
| .PVG | Microsoft Corporation | Data Files | Encarta World Atlas Data File |
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