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Format Excel files with xlsxwriter

suggest change 
import xlsxwriter

# create a new file 
workbook = xlsxwriter.Workbook('your_file.xlsx')

# add some new formats to be used by the workbook 
percent_format = workbook.add_format({'num_format': '0%'})
percent_with_decimal = workbook.add_format({'num_format': '0.0%'})
bold = workbook.add_format({'bold': True})
red_font = workbook.add_format({'font_color': 'red'})
remove_format = workbook.add_format()

# add a new sheet 
worksheet = workbook.add_worksheet() 

# set the width of column A 
worksheet.set_column('A:A', 30, )

# set column B to 20 and include the percent format we created earlier 
worksheet.set_column('B:B', 20, percent_format)

# remove formatting from the first row (change in height=None) 
worksheet.set_row('0:0', None, remove_format)

workbook.close()
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Python and Excel:
* Put list data into a Excel file.
* OpenPyXL
* Create excel charts with xlsxwriter
* Read the excel data using xlrd module
* Format Excel files with xlsxwriter
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189 Raise Custom Errors Exceptions
190 Using loops within functions
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