| add_current_datetime_column | Add current date and time to data frame. | 
| calculate_na_percentage | Calculate NA Percentage | 
| check_installed_package | check_installed_package | 
| get_last_modifed_date | get_last_modified_date | 
| get_recent_file | Get recent file | 
| get_recent_file_date_filename_ymd | Get recent file date filename ymd | 
| get_recent_file_date_modified | Get recent file date modified This function determines the path of the most recent version of a file in a folder. The sorting is determined based on the date of the last change. | 
| is_field_subset | Check if Field is Subset | 
| move_files_pattern | move files pattern | 
| print_last_modified | Print date the file was last modified | 
| random_string_vector | Generate a random string vector | 
| read_excel_allsheets | Read Excel Allsheets | 
| save_session_info_to_file | Save session info to a file | 
| unzip_read_delim | Extract a .zip archive and read in with read_delim |