path <- "pp-complete.csv"
df <- read_feather(path)
Error: Invalid: File is too small to be a well-formed file
feather file format is distinct from a CSV file format. They are not interchangeable. The
read_feather function cannot read simple CSV files.
If you want to read CSV files quickly, your best bets are probably
data.table::fread. For large files, it will still usually take a while just to read it from disc.
After you've loaded the data into R, you can create a file in the
feather format with
write_feather so you can read it with
read_feather the next time.