将Excel工作簿加载到Python中的COM对象时，数据未正确刷新/加载

因此，我正在使用win32加载excel电子表格。然后，我将电子表格分成第8-4000行和第1-65列

第1-16列都是静态数据。之后的列是所有公式（例如执行除法）或使用彭博Excel API从彭博获取数据（例如=BDP（E9&“corp”，“CRNCY”））

现在我的问题是excel不会更新17-65列中的任何一列？当我手动加载它时，它工作得非常好。。 也许你可以从下面我的方式中看到错误。。。多谢各位

（我已经标记了VBA，因为python包装器必须传递类似VBA的代码；或者我是这么理解的。因此，如果任何VBA程序员对此有深入了解，那就太好了）

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也许上帝会工作，它正在重新设计整个excel应用程序。似乎不工作；我认为这可能是一个Bloomerbg.xla（外加）的问题。当我使用Python控制台加载Excel文件时（这样我就可以动态编码），Bloomberg选项卡Refresh All按钮返回一个错误。。。现在，我已经使用xlapp.AddIns验证了它确实已安装等。因此，我将对此进行一些研究，然后再与您联系。谢谢

import win32com.client as win32


def open_workbook(xlapp, xlfile, password=None):

    try:

        xlwb = xlapp.Workbooks("LAP.xlsm")

    except Exception as e:
        print("No 1. Error: ", e)
        try:
            xlwb = xlapp.Workbooks.Open(xlfile, Password=password, UpdateLinks=0)
        except Exception as e:
            print(e)
            xlwb = None

    return xlwb


def main(file, password=None):

    xlapp = win32.gencache.EnsureDispatch("Excel.Application") 

    xlapp.DisplayAlerts = True
    xlapp.Visible = True
    print(check.check_file(file, xlapp))

    if not check.check_file(file, xlapp):
        xlwb = open_workbook(xlapp, xlfile=file, password=password)
    else:
        print("Error")  # TODO what would we do if we can't open the file, try again, prompt user?...


    # The resources sheet contains Currency Exchange Rates used for formula in 'Data' Sheet
    res = xlwb.Sheets('Resources') 
    # The Calculate() stuff is my attempt at fixing the problem
    res.EnableCalculation = False
    res.EnableCalculation = True
    res.Calculate()

    # This is the Main Sheet of interest - it is later loaded into a Panda's Dataframe
    xlws = xlwb.Sheets('Data') 
    last_col = xlws.UsedRange.Columns.Count 
    last_row = xlws.UsedRange.Rows.Count

    #All of this Calcualte() stuff is my attempt at fixing the problem - to no prevail 
    xlws.EnableCalculation = False
    xlws.EnableCalculation = True
    xlws.Calculate()
    xlws.Columns(17).Calculate()
    xlws.Columns(16).Calculate()
    xlws.Columns(18).Calculate()

    xlws.Range(xlws.Cells(8,17), xlws.Cells(last_row,17)).Formula = \
    xlws.Range(xlws.Cells(8,17),xlws.Cells(last_row,17)).Formula


    # This content will be loaded in DataFrame
    content = xlws.Range(xlws.Cells(8,1), xlws.Cells(last_row, last_col)).Value

    print(len(content), type(content))
    print(content[:10])  
    # The final print statement reveals that many of the formula driven columns are 0,N/A etc..