work-helpers/work_helpers/excel2markdown.py

import click
import pyperclip

def split_table(text):
    rows = []
    for line in text.splitlines():
        values = line.split("\t")
        cells = [v.strip() for v in values]
        rows.append(cells)
    return rows


def get_cell_lengths(table):
    tmp = { }

    for row in table:
        for i, cell in enumerate(row):
            if i not in tmp:
                tmp[i] = []
            tmp[i].append(len(cell))
    
    return {k: max(v) for k, v in tmp.items()}

def build_table(table, lengths):
    text_rows = [_build_row(row, lengths) for row in table]
    header, *rest = text_rows
    sep_items = [
        "-" * lengths[k] for k in sorted(lengths.keys())
    ]
    separator = _build_line(sep_items)
    lines = [header, separator] + rest
    return  "\r\n".join(lines)

def _build_row(row, lengths):
    items = []
    for i, cell in enumerate(row):
        length = lengths[i]
        items.append(cell.ljust(length))
    return _build_line(items)

def _build_line(items):
    tmp = " | ".join(items)
    return f"| {tmp} |"



@click.command()
def cli():
    xls = pyperclip.paste()
    table = split_table(xls)
    lengths = get_cell_lengths(table)
    result = build_table(table, lengths)
    print("copied to clipboard")
    pyperclip.copy(result)