python处理excel有xlwt，openpyxl等，而xlwt只支持excel2003，也就是最多有256列，而openpyxl则支持excel2007以上，最多65536列。下面是两个的程序。
xlwt为

import json

import xlwt

def readFromJson(file):

    with open(file, 'r', encoding='utf8') as fr:

        jsonData = json.load(fr)

    return jsonData

def writeToExcel(file):

    json = readFromJson(file)

    excel = xlwt.Workbook()

    sheet1 = excel.add_sheet('sheet1', cell_overwrite_ok=True)

    sheet2 = excel.add_sheet('sheet2', cell_overwrite_ok=True)

    length = len(json)

    i = 0

    while i < length:

        eachLine = json[i]

        questions = eachLine['questions']

        answer = eachLine['answer']

        questionSize = len(questions)

        if (questionSize > 256):

            print(i + 1, questionSize)

        j = 0

        while j < questionSize:

            ques = questions[j]

            eachQues = ques['question']

            if j < 256:

                sheet1.write(i, j, eachQues)

            if j == 0:

                sheet2.write(i, 0, eachQues)

            j = j + 1

        sheet2.write(i, 1, answer)

        i = i + 1

    excel.save('doc/answer.xls')

if __name__ == '__main__':

    writeToExcel('doc/kb.json')

openpyxl为

import openpyxl

import json

def readFromJson(file):

    with open(file, 'r', encoding='utf8') as fr:

        jsonData = json.load(fr)

    return jsonData

def writeToExcel(file):

    json = readFromJson(file)

    excel = openpyxl.Workbook()

    sheet1 = excel.create_sheet('sheet1', index=0)

    sheet2 = excel.create_sheet('sheet2', index=0)

    length = len(json)

    i = 0

    while i < length:

        eachLine = json[i]

        questions = eachLine['questions']

        answer = eachLine['answer']

        questionSize = len(questions)

        j = 0

        while j < questionSize:

            ques = questions[j]

            eachQues = ques['question']

            sheet1.cell(row=i + 1, column=j + 1, value=eachQues)

            if j == 0:

                sheet2.cell(row=i + 1, column=1, value=eachQues)

            j = j + 1

        sheet2.cell(row=i + 1, column=2, value=answer)

        i = i + 1

    excel.save('doc/answer.xlsx')

if __name__ == '__main__':

    writeToExcel('doc/kb.json')

其核心在于读取json的方法和写入excel的方法。