The X
extension name file type Classification
RAL WinRail Track Design File data file
RAY Synopsys Light Ray Data File data file
RBT LEGO MINDSTORMS NXT Program data file
RCC Recap Compressed Structured Scan Data File data file
RCD Arcade File data file
RCG Recog Character Recognition Set data file
RCX REDCINE-X Project File data file
RDA R Data File data file
RDATA R Workspace File data file
RDB N64 ROM Database data file
RDF ReDIF Template data file
RDG RDCman Config File data file
RDLX Power View Project File data file
RDX Reflex Data File data file
REB Reimbursement Tracker Data File data file
REC eJuice Me Up Recipe File data file
REC fsck Data Recovery File data file
REDIF ReDIF Template data file
REF Microsoft Train Simulator Reference File data file
REFERENCE Budget In Brief Reference File data file
REL Norton Internet Security Log File data file
REP X-Plane Replay File data file
RET BusinessObjects Template data file
REZ FirstClass Resource File data file
RF1 Retirement Forecast File data file
RFA Revit Family File data file
RFO RoboForm Option File data file
RGE Entourage File Archive data file
RGMC RootsMagic Genealogy Project File data file
RGO RepliGo File data file
RHISTORY R History File data file
RL R.viewer List File data file
RMD R Markdown File data file
RMD Reference Manager Data File data file
RMUF Alpha Five Runtime License File data file
RMX Reference Manager Index File data file
RNG RELAX NG File data file
RNQ Renque Model File data file
ROADTRIP Road Trip Planner File data file
ROCA RIB office Compressed Archive data file
ROD Actuate Report Object Design File data file
RODZ Ancestry Genealogical Database File data file
ROG Roger 2 Input Data File data file
ROI Report Object Instance data file
ROI Shark Sales System Data File data file
ROU Gerber Route File data file
ROX Roxio Project File data file
ROXIO Roxio Project data file
ROZ aSc TimeTables Schedule File data file
RP Axure RP Project File data file