| File Extension: | RAT |
| File Type Description: | PICS Rating File |
| File Type Developer: | World Wide Web Consortium (W3C) |
| Primary Associated Software: | Microsoft Notepad |
| Primary Software Developer: | Microsoft Corporation |
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Release of the Microsoft WordPad software program prompted the development of the PICS Rating File file type by Microsoft Corporation. Our internal web tracking data indicates that Windows 10 operating system users, and those living in United States, are the most likely to use PICS Rating File files. Frequently these users are visiting our web site using Google Chrome.
 | Autodesk AutoCAD Civil 3D by Autodesk, Inc. |
 | Microsoft Windows by Microsoft Corporation |
 | Notepad++ by Don Ho |
 | Microsoft WordPad by Microsoft Corporation |
 | RATS by Estima |
| Windows 10 | Windows 11 | Windows 6 | Windows 8.1 |
 | Windows |
 | Mac |
 | Linux |
 | Unix |
| Extension | File Type Developer | File Category | File Type Description |
|---|---|---|---|
| .NLS | Uri Wilensky | Developer Files | NetLogo Source Code File |
| .VCXPROJ | Microsoft Corporation | Developer Files | Microsoft Visual Studio Visual C++ Project |
| .PDZ | ProntoForms | Page Layout Files | ProntoDoc For Word Structured Text Document Template |
| .EPT | Adobe Systems Incorporated | Uncommon Files | Adobe Encapsulated PostScript Interchange Format With TIFF Preview |
| .SWV | Microsoft Corporation | Game Files | Microsoft Sidewinder Game Voice Settings File |
| .XMP | Adobe Systems Incorporated | Uncommon Files | Extensible Metadata Platform File |
| .286 | Microsoft Corporation | System Files | Microsoft Windows Virtual Device Driver |
| .VC4 | Microsoft Corporation | Developer Files | Visual C++ 4 File |
| .PSD | Adobe Systems Incorporated | Raster Image Files | Adobe Photoshop Document |
| .NHM | Microsoft Corporation | Data Files | Microsoft Systems Management Server (SMS) Data |
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