Extension	File Type Developer	File Category	File Type Description	Software	Software Developer
.RAT	World Wide Web Consortium (W3C)	Uncommon Files	PICS Rating File	Microsoft Windows	Microsoft Corporation
.RESTORELIST	Microsoft Corporation	System Files	Microsoft Windows File System Permission	Microsoft Windows	Microsoft Corporation
.RSP	Rockwell Automation Inc.	Data Files	RSLogix PLC Program File	Microsoft Windows	Microsoft Corporation
.RX	Microsoft Corporation	System Files	MS-DOS 7 Data	Microsoft Windows	Microsoft Corporation

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