| encoding/csv | Package csv reads and writes comma-separated values (CSV) files. |
| flag | Package flag implements command-line flag parsing. |
| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| github.com/olekukonko/tablewriter | Create & Generate text based table |
| io | Package io provides basic interfaces to I/O primitives. |
| os | Package os provides a platform-independent interface to operating system functionality. |
| unicode/utf8 | Package utf8 implements functions and constants to support text encoded in UTF-8. |