from openpyxl import load_workbook
from openpyxl.utils import get_column_letter
p='/tmp/lead-32693-r2/capture-1/project/workbook.xlsx'
w=load_workbook(p)
for s in w:
 for col in range(1,21):s.column_dimensions[get_column_letter(col)].width=26
w.save(p)