FileViewPro

Extension	File Type Developer	File Category	File Type Description	Software	Software Developer
.R	Open Source	Developer Files	R Script File	Microsoft Windows Media Player	Microsoft Corporation
.R8	Unknown Developer	Camera Raw Files	RAW Graphics File	Microsoft Flight Simulator	Microsoft Corporation
.R82	Microsoft Corporation	Graphic Files	Flight Simulator Texture File	Microsoft Flight Simulator	Microsoft Corporation
.RAF	Fuji Xerox	Camera Raw Files	Fuji RAW Image File	ACD Systems Canvas	Microsoft Corporation
.RAT	World Wide Web Consortium (W3C)	Uncommon Files	PICS Rating File	Microsoft Notepad	Microsoft Corporation
.RATDVD	RatDVD	Disk Image Files	RatDVD Disk Image	Microsoft Windows Media Player	Microsoft Corporation
.RAW	Unknown Developer	Camera Raw Files	Raw Image Data File	Microsoft Windows Photos	Microsoft Corporation
.RB	Larian Studios	Game Files	Divinity: Original Sin Game Data	Visual Studio Code	Microsoft Corporation
.RBF	Microsoft Corporation	Backup Files	Windows Installer Rollback File	Windows Installer	Microsoft Corporation
.RBK	Microsoft Corporation	Backup Files	Windows 95 Registry Backup File	Microsoft Configuration Backup Tool	Microsoft Corporation
.RBS	Microsoft Corporation	Backup Files	Windows Installer Rollback Script File	Windows Installer	Microsoft Corporation
.RC	Angus Johnson	Developer Files	Resource Script File	Microsoft Visual Studio	Microsoft Corporation
.RC2	Microsoft Corporation	Developer Files	Visual Studio Resources File	Microsoft Visual Studio	Microsoft Corporation
.RC3	Microsoft Corporation	Developer Files	Vc98/Visual C Resource File	Microsoft Visual C++	Microsoft Corporation
.RCC	Angus Johnson	Developer Files	Resource Script File	Microsoft Visual Studio	Microsoft Corporation
.RCJ	Microsoft Corporation	Text Files	Robocopy Job File	Microsoft Notepad	Microsoft Corporation
.RCT	Microsoft Corporation	Settings Files	Visual Studio Resource Template	Microsoft Visual Studio	Microsoft Corporation
.RC_	Microsoft Corporation	Data Files	Microsoft WinHelp Compressed Help Document	Microsoft Windows Help	Microsoft Corporation
.RDF	Unknown Developer	Settings Files	Resource Description Framework File	Microsoft Excel	Microsoft Corporation
.RDG	Microsoft Corporation	Settings Files	Microsoft Remote Desktop Connection Manager Configuration	Microsoft Remote Desktop Connection	Microsoft Corporation
.RDP	Microsoft Corporation	Settings Files	Remote Desktop Configuration File	Microsoft Remote Desktop Connection	Microsoft Corporation
.REA	Microsoft Corporation	Text Files	Readme Text File	Microsoft Notepad	Microsoft Corporation
.README	The Document Foundation	Text Files	Readme Text Document File	Microsoft Notepad	Microsoft Corporation
.REFERENCE	Budget In Brief	Data Files	Budget In Brief Reference File	Microsoft Notepad	Microsoft Corporation
.REG	Microsoft Corporation	System Files	Registry File	Windows Registry Editor	Microsoft Corporation
.RELS	Microsoft Corporation	Page Layout Files	Open Office XML Relationships File	Microsoft Excel	Microsoft Corporation
.REPORT	Sublime HQ Pty Ltd	Data Files	Report File	Microsoft Notepad	Microsoft Corporation
.REQ	Open Source	Uncommon Files	SSL Certificate Request File	Microsoft Exchange Server	Microsoft Corporation
.RES	Valve	Settings Files	Valve Resource File	Microsoft Visual Studio	Microsoft Corporation
.RESJSON	Microsoft Corporation	Developer Files	Microsoft Windows 8 Metro JavaScript File	Microsoft Windows 8	Microsoft Corporation
.RESMONCFG	Microsoft Corporation	Settings Files	Microsoft Windows Resource Monitor Settings	Microsoft Resource Monitor	Microsoft Corporation
.RESOURCES	Microsoft Corporation	Developer Files	Microsoft Visual Studio Resource	Microsoft Visual Studio	Microsoft Corporation
.RESTORELIST	Microsoft Corporation	System Files	Microsoft Windows File System Permission	Microsoft Windows	Microsoft Corporation
.RESW	Microsoft Corporation	Developer Files	Microsoft Windows 8 Resources File	Microsoft Windows 8	Microsoft Corporation
.RESX	Microsoft Corporation	Developer Files	.NET Managed Resources File	Microsoft Visual Studio	Microsoft Corporation
.RGB	Silicon Graphics, Inc.	Raster Image Files	RGB Bitmap	ACD Systems Canvas	Microsoft Corporation
.RGE	Microsoft Corporation	Data Files	Entourage File Archive	Microsoft Outlook 2016	Microsoft Corporation
.RGS	Microsoft Corporation	Executable Files	Registry Script	Microsoft Visual Studio	Microsoft Corporation
.RH	Microsoft Corporation	Developer Files	C++ Resource Header Data	Microsoft Visual C++	Microsoft Corporation
.RHTML	Yukihiro “Matz” Matsumoto	Web Files	Ruby HTML Web Page	Internet Explorer	Microsoft Corporation
.RJS	Yukihiro “Matz” Matsumoto	Web Files	Ruby Javascript File	Microsoft Edge	Microsoft Corporation
.RL4	Various Developers	Raster Image Files	Bitmap Image File	Microsoft Windows Photos	Microsoft Corporation
.RLL	Microsoft Corporation	Settings Files	Microsoft Resource Library	Microsoft Visual Studio	Microsoft Corporation
.RMH	Microsoft Corporation	Data Files	Rights-Managed HTML Document File	Internet Explorer	Microsoft Corporation
.RMI	Open Source	Audio Files	RMID MIDI File	Microsoft Windows Media Player	Microsoft Corporation
.RMT	The Catalina Group	System Files	Router Firmware File	Internet Explorer	Microsoft Corporation
.RPC	Synthrone	Page Layout Files	Rich Page Content Document	Microsoft Visual Studio	Microsoft Corporation
.RPT	SAP	Data Files	Crystal Reports File	Microsoft Visual Studio	Microsoft Corporation
.RPY	Team Shanghai Alice	Game Files	Touhou Project Replay File	Microsoft Notepad	Microsoft Corporation
.RRA	Iterum, LLC	CAD Files	vRigger Rigging Gear File	Windows Installer	Microsoft Corporation
.RRT	ALTAVENTE	Data Files	Rhapzode Resource Template	Microsoft PowerPoint	Microsoft Corporation
.RSP	Rockwell Automation Inc.	Data Files	RSLogix PLC Program File	Microsoft Visual Studio	Microsoft Corporation
.RST	David Goodger	Text Files	ReStructuredText File	Microsoft Notepad	Microsoft Corporation
.RTC	Brain Innovation	Data Files	BrainVoyager QX Design Matrix File	Internet Explorer	Microsoft Corporation
.RTE	Autodesk, Inc.	Data Files	Revit Project Template	Microsoft Exchange Server	Microsoft Corporation
.RTF	Microsoft Corporation	Text Files	Rich Text Format File	Microsoft WordPad	Microsoft Corporation
.RTL	Hewlett-Packard	Raster Image Files	Raster Transfer Language File	Microsoft Notepad	Microsoft Corporation
.RTP	KTH Royal Institute of Technology	Data Files	Gromacs Residue Topology Parameter File	MS-DOS	Microsoft Corporation
.RTX	The Document Foundation	Text Files	Rich Text Document	Microsoft Word	Microsoft Corporation
.RT_	Microsoft Corporation	Data Files	Microsoft WinHelp Compressed Help Document	Microsoft Windows Help	Microsoft Corporation
.RU	Microsoft Corporation	Text Files	Russian Text Or Localization File	Microsoft Notepad	Microsoft Corporation
.RUF	Samsung Electronics	System Files	Samsung DVD And Blu-ray Player Firmware File	Windows Built-in USB Drive Software	Microsoft Corporation
.RULESET	Microsoft Corporation	Settings Files	Visual Studio Code Analysis Rule Set	Microsoft Visual Studio	Microsoft Corporation
.RV	Astronomical Institute of the Czech Academyof Sciences	Data Files	SPEFO Stellar Spectra Analysis Data	Microsoft Windows Media Player	Microsoft Corporation
.RWD	NRG Systems	Data Files	NRG Raw Wind Data File	Microsoft Flight Simulator	Microsoft Corporation
.RWZ	Microsoft Corporation	Uncommon Files	Outlook Rules Wizard File	Microsoft Outlook 2016	Microsoft Corporation
.RX	Microsoft Corporation	System Files	MS-DOS 7 Data	Microsoft Windows	Microsoft Corporation

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