rio (version 0.5.27)

rio: A Swiss-Army Knife for Data I/O


The aim of rio is to make data file input and output as easy as possible. export and import serve as a Swiss-army knife for painless data I/O for data from almost any file format by inferring the data structure from the file extension, natively reading web-based data sources, setting reasonable defaults for import and export, and relying on efficient data import and export packages. An additional convenience function, convert, provides a simple method for converting between file types.

Note that some of rio's functionality is provided by ‘Suggests’ dependendencies, meaning they are not installed by default. Use install_formats to make sure these packages are available for use.



GREA provides an RStudio add-in to import data using rio.

See Also

import, import_list, export, export_list, convert, install_formats


# export
export(mtcars, "mtcars.csv") # comma-separated values
export(mtcars, "mtcars.rds") # R serialized
export(mtcars, "mtcars.sav") # SPSS

# import
x <- import("mtcars.csv")
y <- import("mtcars.rds")
z <- import("mtcars.sav")

# convert
convert("mtcars.sav", "mtcars.dta")

# cleanup
unlink(c("mtcars.csv", "mtcars.rds", "mtcars.sav", "mtcars.dta"))

# }