由于INDIRECT 不适用于合上的书，而且打开它们的成本很高，因此正常的解决方案是
- 用 VBA 创建一个 dirty 链接。
- 使用 Morefunc 插件中的
Indirect.Ext。
- 我的首选方法是使用
XLM，Harlan Grove 在下面的 pull 函数中对其进行了改进。
用于您的目的：
=pull("'C:\"&A1&"\"&"[1.xls]Sheet1'!C1")
来自https://numbermonger.wordpress.com/2012/02/11/excel-pull-function-creating-dynamic-links-to-closed-workbooks/
拉取函数
Function pull(xref As String) As Variant
'inspired by Bob Phillips and Laurent Longre
'but written by Harlan Grove
'-----------------------------------------------------------------
'Copyright (c) 2003 Harlan Grove.
'
'This code is free software; you can redistribute it and/or modify
'it under the terms of the GNU General Public License as published
'by the Free Software Foundation; either version 2 of the License,
'or (at your option) any later version.
'-----------------------------------------------------------------
'2004-05-30
'still more fixes, this time to address apparent differences between
'XL8/97 and later versions. Specifically, fixed the InStrRev call,
'which is fubar in later versions and was using my own hacked version
'under XL8/97 which was using the wrong argument syntax. Also either
'XL8/97 didn't choke on CStr(pull) called when pull referred to an
'array while later versions do, or I never tested the 2004-03-25 fix
'against multiple cell references.
'-----------------------------------------------------------------
'2004-05-28
'fixed the previous fix - replaced all instances of 'expr' with 'xref'
'also now checking for initial single quote in xref, and if found
'advancing past it to get the full pathname [dumb, really dumb!]
'-----------------------------------------------------------------
'2004-03-25
'revised to check if filename in xref exists - if it does, proceed;
'otherwise, return a #REF! error immediately - this avoids Excel
'displaying dialogs when the referenced file doesn't exist
'-----------------------------------------------------------------
Dim xlapp As Object, xlwb As Workbook
Dim b As String, r As Range, C As Range, n As Long
'** begin 2004-05-30 changes **
'** begin 2004-05-28 changes **
'** begin 2004-03-25 changes **
n = InStrRev(xref, "\")
If n > 0 Then
If Mid(xref, n, 2) = "\[" Then
b = Left(xref, n)
n = InStr(n + 2, xref, "]") - n - 2
If n > 0 Then b = b & Mid(xref, Len(b) + 2, n)
Else
n = InStrRev(Len(xref), xref, "!")
If n > 0 Then b = Left(xref, n - 1)
End If
'** key 2004-05-28 addition **
If Left(b, 1) = "'" Then b = Mid(b, 2)
On Error Resume Next
If n > 0 Then If Dir(b) = "" Then n = 0
Err.Clear
On Error GoTo 0
End If
If n <= 0 Then
pull = CVErr(xlErrRef)
Exit Function
End If
'** end 2004-03-25 changes **
'** end 2004-05-28 changes **
pull = Evaluate(xref)
'** key 2004-05-30 addition **
If IsArray(pull) Then Exit Function
'** end 2004-05-30 changes **
If CStr(pull) = CStr(CVErr(xlErrRef)) Then
On Error GoTo CleanUp 'immediate clean-up at this point
Set xlapp = CreateObject("Excel.Application")
Set xlwb = xlapp.Workbooks.Add 'needed by .ExecuteExcel4Macro
On Error Resume Next 'now clean-up can wait
n = InStr(InStr(1, xref, "]") + 1, xref, "!")
b = Mid(xref, 1, n)
Set r = xlwb.Sheets(1).Range(Mid(xref, n + 1))
If r Is Nothing Then
pull = xlapp.ExecuteExcel4Macro(xref)
Else
For Each C In r
C.Value = xlapp.ExecuteExcel4Macro(b & C.Address(1, 1, xlR1C1))
Next C
pull = r.Value
End If
CleanUp:
If Not xlwb Is Nothing Then xlwb.Close 0
If Not xlapp Is Nothing Then xlapp.Quit
Set xlapp = Nothing
End If
End Function