Followup question: I would think that I need the package rrd to import this data into r. However, RStudio does not seem to find this package..?

install.packages("rrd")
#> Installing package into 'C:/Users/rata/Documents/R/win-library/3.5'
#> (as 'lib' is unspecified)
#> Warning: package 'rrd' is not available (for R version 3.5.1)