Pythonオフィスオートメーション、openpyxlの操作を5分でマスター！

>>> from openpyxl import Workbook
>>> wb = Workbook()

>>> from openpyxl import load_workbook
>>> wb2 = load_workbook('test.xlsx')

wb = load_workbook(filename='large_file.xlsx', read_only=True)
wb = Workbook(write_only=True)

>>> ws = wb.active

>>> ws1 = wb.create_sheet("Mysheet") # insert at the end (default)
 # or
 >>> ws2 = wb.create_sheet("Mysheet", 0) # insert at first position
 # or
 >>> ws3 = wb.create_sheet("Mysheet", -1) # insert at the penultimate position

>>> ws3 = wb["New Title"]

>>> print(wb.sheetnames)
 ['Sheet2', 'New Title', 'Sheet1']
使用for循环遍历所有的工作表：
 >>> for sheet in wb:
 ... print(sheet.title)

>>> from tempfile import NamedTemporaryFile
 >>> from openpyxl import Workbook
 >>> wb = Workbook()
 >>> with NamedTemporaryFile() as tmp:
 wb.save(tmp.name)
 tmp.seek(0)
 stream = tmp.read()
保存到文件：
 >>> wb = Workbook()
 >>> wb.save('balances.xlsx')
保存为模板：
 >>> wb = load_workbook('document.xlsx')
 >>> wb.template = True
 >>> wb.save('document_template.xltx')

>>> c = ws['A4']

>>> ws['A4'] = 4
 >>> c.value = 'hello, world'

>>> cell_range = ws['A1':'C2']

>>> # set date using a Python datetime
 >>> ws['A1'] = datetime.datetime(2010, 7, 21)
 >>>
>>> ws['A1'].number_format
 'yyyy-mm-dd h:mm:ss'

>>> # add a simple formula
 >>> ws["A1"] = "=SUM(1, 1)"

>>> ws.merge_cells('A2:D2')
 >>> ws.unmerge_cells('A2:D2')
 >>>
>>> # or equivalently
 >>> ws.merge_cells(start_row=2, start_column=1, end_row=4, end_column=4)
 >>> ws.unmerge_cells(start_row=2, start_column=1, end_row=4, end_column=4)

>>> colC = ws['C']
 >>> col_range = ws['C:D']
 >>> row10 = ws[10]
 >>> row_range = ws[5:10]

>>> for row in ws.iter_rows(min_row=1, max_col=3, max_row=2):
 ...for cell in row:
 ...print(cell)
 <Cell Sheet1.A1>
 <Cell Sheet1.B1>
 <Cell Sheet1.C1>
 <Cell Sheet1.A2>
 <Cell Sheet1.B2>
 <Cell Sheet1.C2>

>>> for col in ws.iter_cols(min_row=1, max_col=3, max_row=2):
 ... for cell in col:
 ... print(cell)
 <Cell Sheet1.A1>
 <Cell Sheet1.A2>
 <Cell Sheet1.B1>
 <Cell Sheet1.B2>
 <Cell Sheet1.C1>
 <Cell Sheet1.C2>

>>> ws = wb.active
 >>> ws['C9'] = 'hello world'
 >>> tuple(ws.rows)
 ((, , ),
 (, , ),
 (, , ),
 (, , ),
 (, , ),
 (, , ),
 (, , ),
 (, , ),
 (, , ))

>>> tuple(ws.columns)
 ((<Cell Sheet.A1>,
 <Cell Sheet.A2>,
 <Cell Sheet.A3>,
 <Cell Sheet.A4>,
 <Cell Sheet.A5>,
 <Cell Sheet.A6>,
 ...
 <Cell Sheet.B7>,
 <Cell Sheet.B8>,
 <Cell Sheet.B9>),
 (<Cell Sheet.C1>,
 <Cell Sheet.C2>,
 <Cell Sheet.C3>,
 <Cell Sheet.C4>,
 <Cell Sheet.C5>,
 <Cell Sheet.C6>,
 <Cell Sheet.C7>,
 <Cell Sheet.C8>,
 <Cell Sheet.C9>))

>>> for row in range(1, 40):
 ... ws1.append(range(600))
 >>> for row in range(10, 20):
 ... for col in range(27, 54):
 ... _ = ws3.cell(column=col, row=row, value="{0}".format(get_column_letter(col)))

>>> from openpyxl.utils import get_column_letter
 >>> ws.insert_rows(7)
>>> row7 = ws[7]
>>> for col in range(27, 54):
 ... _ = ws3.cell(column=col, row=7, value="{0}".format(get_column_letter(col)))
Worksheet.insert_cols()操作类似。Worksheet.delete_rows()和Worksheet.delete_cols()用来批量删除行和列。

for row in ws.values:
for value in row:
print(value)

>>> for row in ws.iter_rows(min_row=1, max_col=3, max_row=2, values_only=True):
 ... print(row)
 (None, None, None)
(None, None, None)