为什么在尝试拉入此文件时会收到 Token Comma Expected 错误？

Question

我收到“预期的令牌逗号”错误。它突出显示了“in”。

let
    Source = Excel.CurrentWorkbook(File.Contents("C:\Users\arrow\Dropbox (Arrow Academy)\BILLING\MEDICAID\1TM - EE MA Numbers for Billing TEST.xlsx"){[Name="Table1"]}[Content],
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"MA#-INITIALS", type text}, {"FIRST NAME", type text}, {"LAST NAME, FIRST NAME", type text}, {"MA SPECIALTY", type text}, {"POSITION", type text}, {"INITIALS", type text}, {"INITIALS2", type text}}) 
in
    #"Changed Type"

Answer 1

Source = Excel.CurrentWorkbook(File.Contents("C:\Users\arrow\Dropbox (Arrow Academy)\BILLING\MEDICAID\1TM - EE MA Numbers for Billing TEST.xlsx")){[Name="Table1"]}[Content],

Excel.CurrentWorkbook() 没有关闭。