Importing Data into R from Excel CSV Format

Although creating data frames from existing data structures is extremely useful, by far the most common approach is to create a data frame by importing data from an external file. To do this, you’ll need to have your data correctly formatted and saved in a file format that R is able to recognise. Fortunately for us, R is able to recognise a wide variety of file formats, although in reality you’ll probably end up only using two or three regularly.