Horizontal text alignment in openpyxl

Question

I\'m tryign to change the text alignment to the center of 2 merged sells, I\'ve found some answers that didn\'t work for my case

currentCell = ws.cell(\'A1\')
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Answer 1

None of the other solutions worked for me, since my solution requires openpyxl, and at least in 2.1.5 cell.alignment can't be set directly.

from openpyxl.styles import Style, Alignment

cell = ws.cell('A1')
cell.style = cell.style.copy(alignment=Alignment(horizontal='center')) 

The above copies the current style and replaces the alignment. You can also create a whole new style - with any values not specified taking the default values from https://openpyxl.readthedocs.org/en/latest/styles.html

cell.style = Style(alignment=Alignment(horizontal='center'),font=Font(bold=True))

# or - a tidier way

vals = {'alignment':Alignment(horizontal='center'),
        'font':Font(bold=True),
       }
new_style = Style(**vals)
cell.style = new_style

Answer 2

You can achieve this by using Python XlsxWriter library.

import xlsxwriter

workbook = xlsxwriter.Workbook('example.xlsx')
worksheet = workbook.add_worksheet()

cell_format = workbook.add_format({'align': 'center'})

worksheet.merge_range('A1:B1', "")
worksheet.write_rich_string('A1','Example', cell_format)

workbook.close()

Here i have merged cells A1, B1 and added a cell format parameter which includes the align parameter assigned as center.

Answer 3

yes, there is a way to do this with openpyxl:

from openpyxl.styles import Alignment

currentCell = ws.cell('A1') #or currentCell = ws['A1']
currentCell.alignment = Alignment(horizontal='center')

hope this will help you

Answer 4

This is what finally worked for me with the latest version from PIP (2.2.5)

    # center all cells
    for col in w_sheet.columns:
        for cell in col:
            # openpyxl styles aren't mutable,
            # so you have to create a copy of the style, modify the copy, then set it back
            alignment_obj = cell.alignment.copy(horizontal='center', vertical='center')
            cell.alignment = alignment_obj

Update:

As of openpyxl version 2.4.0 (~2016) the .copy() method is deprecated for StyleProxy objects.

Try changing the last two lines to:

from copy import copy
alignment_obj = copy(cell.alignment)
alignment_obj.horizontal = 'center'
alignment_obj.vertical = 'center'
cell.alignment = alignment_obj