An R package to read, write, format Excel 2007 and Excel 97/2000/XP/2003 files
The package provides R functions to read, write, and format Excel files. Depends on Java, but this makes it available on most OS'es.
Stable version from CRAN
install.packages('xlsx')
Or development version from GitHub
devtools::install_github('dragua/xlsx')
To read the first sheet from spreadsheet into a data.frame
read.xlsx2('C:/temp/file.xlsx', 1)
To write a data.frame to a spreadsheet
write.xlsx2(iris, file='C:/temp/iris.xlsx')