python脚本-excel批量转换为csv文件

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# -*- coding: utf-8 -*-
"""
Created on Mon Apr  4 18:04:06 2016

@author: Toby，qq:231469242,原创版权
"""

import csv,os,openpyxl

#获取所有excel文件名
def Get_excelFileNames():
    excelFiles_list=[]
    for excelFilename in os.listdir('.'):
        if excelFilename.endswith('.xlsx') or excelFilename.endswith('.xls'):
            excelFiles_list.append(excelFilename)
    
    return excelFiles_list

'''
excelFiles_list
Out[17]: ['Book1.xlsx', 'Book2.xlsx', 'Book3.xlsx', 'Book4.xlsx']

'''
    
    

#获取一个excel内所有表格
def Get_sheets_from_oneExcel(excelFileName):
    wb=openpyxl.load_workbook(excelFileName)
    sheets=wb.get_sheet_names()
    
    return sheets

'''
Get_sheets_from_oneExcel('Book1.xlsx')
Out[19]: ['Sheet1', 'Sheet2', 'Sheet3']
'''

#获取excel的行信息
def Get_sheet_rowData(excelFileName,sheetName,rowNum):
    wb=openpyxl.load_workbook(excelFileName)
    sheet=wb.get_sheet_by_name(sheetName)
    highest_column=sheet.get_highest_column()
    rowData=[] #append each cell to this list
    #loop through each cell in the row
    for colNum in range(1,highest_column+1):
        #append each cell's data to rowData
        cell_value=sheet.cell(row=rowNum,column=colNum).value
        rowData.append(cell_value)
    
    return rowData

'''
Get_sheet_rowData('Book1.xlsx','Sheet1',1)
Out[39]: ['fsdf ', 'ds', 'fdf']

'''

#获取excel的信息
def Get_sheet_Data(excelFileName,sheetName):
    wb=openpyxl.load_workbook(excelFileName)
    sheet=wb.get_sheet_by_name(sheetName)
    highest_row=sheet.get_highest_row()
    highest_column=sheet.get_highest_column()
    
    sheet_data=[]
    for rowNum in range(1,highest_row+1):
        rowData=[] #append each cell to this list
        #loop through each cell in the row
        for colNum in range(1,highest_column+1):
            #append each cell's data to rowData
            cell_value=sheet.cell(row=rowNum,column=colNum).value
            rowData.append(cell_value)
            
        sheet_data.append(rowData)
        rowData=[]  #清空行数据，为遍历重新准备
    return sheet_data
 
'''
Get_sheet_Data("Book1.xlsx",'Sheet1')
Out[41]: [['fsdf ', 'ds', 'fdf'], ['fdsf', 'tt', 'fds'], 
['gfdgg', 'gfdg', 'gdfgdg']]

'''

#取一个CSV名字
def Get_csvFileName(excelFileName,sheetName):
    baseName=os.path.splitext(excelFileName)[0]
    csvFileName=os.path.join('csvFiles',baseName+"_"+sheetName+".csv")
    return csvFileName
    

#把一个excel的sheet转换为csv
def Convert_oneExcelsheet_to_csv(excelFileName,sheetName):
    csvFileName=Get_csvFileName(excelFileName,sheetName)
    csvObj=open(csvFileName,'w',newline='')
    csvWriter=csv.writer(csvObj)
    sheet_data=Get_sheet_Data(excelFileName,sheetName)
    for rowData in sheet_data:
        csvWriter.writerow(rowData)
    
    csvObj.close()

'''
Convert_oneExcelsheet_to_csv("Book1.xlsx",'Sheet1')

'''

#把一个excel的所有sheet转换为各自的csv文件
def Convert_oneExcelAllsheets_to_csv(excelFileName):
    sheets=Get_sheets_from_oneExcel(excelFileName)
    for sheetName in sheets:
        Convert_oneExcelsheet_to_csv(excelFileName,sheetName)
        

#转换所有excel的所有sheet为各自的csv文件
def Convert_allExcellAllsheets_to_csv(excelFiles_list):
    for excelFileName in excelFiles_list:
        Convert_oneExcelAllsheets_to_csv(excelFileName)

os.makedirs('csvFiles', exist_ok=True)
excelFiles_list=Get_excelFileNames() 
#转换所有excel的所有sheet为各自的csv文件
Convert_allExcellAllsheets_to_csv(excelFiles_list)

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