Feather is file format designed for efficient on-disk serialisation of data frames that can be shared across programming languages (e.g. Python and R).
library(feather) write_feather(mtcars, "mtcars.feather") mtcars2 <- read_feather("mtcars.feather")
Install the released version from CRAN:
# install.packages("feather")
Or the development version from GitHub:
# install.packages("devtools") devtools::install_github("wesm/feather/R")