Create file/dir
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file.create("new_csv_file.csv")
dir.create("new_dir")
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#To create a folder
dir.create ("<C:/.../folder_name>") #include full file path
#To add files to the folder
file.create ("C:/.../folder_name/new_csv_file.csv")
#To delete files
unlink ("C:/.../folder_name/new_csv_file.csv")