Loading Rdata files

# RData file location 
path=" " 
# For example path="J:/downloads/datasets/R"

# Set directory
setwd(path) 

# Load data
load("filename.RData")

Loading csv files

# csv file location 
path=" " 
# For example path="J:/downloads/datasets/R"

# Set directory
setwd(path) 

# Load data
data<-read.csv("filename.csv")

Loading xlsx files

# Calling package
library(readxl)

# xlsx file location 
path=" " 
# For example path="J:/downloads/datasets/R"

# Set directory
setwd(path) 

# Load data
data<-read_xlsx("filename.xlsx")

Loading dbf files

# Calling package
library("foreign")

# Setting path
path=" " 
# For example path="J:/downloads/datasets/R"

# Load data
data<-read.dbf("filename.dbf")