Excel file is a file where the data is stored in the form of rows and columns. The R markdown is a file where we can embed the code and its documentation in the same file and are able to knit it out the required format like HTML Page(default),PDF, etc, The extension of the R Markdownfile is “.Rmd”. To import that excel file into the R markdown we can use thereadxl package of R programming language.
The Polars is a fast, efficient DataFrame library in Python, designed for processing large datasets with low memory usage and high performance. While Polars is more commonly used with CSV, Parquet, and JSON files, we can also work with Excel files, though this requires an additional setup as Polars does not have native support for Excel files.