Cоздай в С файл c:\Files\Budget.xls и вставь код в модуль другой книги

автор
Private Function GetValue(path, file, sheet, ref)
' Retrieves a value from a closed workbook
Dim arg As String

' Make sure the file exists
If Right(path, 1) <> "\" Then path = path & "\"
If Dir(path & file) = "" Then
GetValue = "File Not Found"
Exit Function
End If

' Create the argument
arg = "'" & path & "[" & file & "]" & sheet & "'!" & _
Range(ref).Range("A1").Address(, , xlR1C1)

' Execute an XLM macro
GetValue = ExecuteExcel4Macro(arg)
End Function



Sub TestGetValue()
p = "c:\Files"
f = "Budget.xls"
s = "Sheet1"
a = "A1"
MsgBox GetValue(p, f, s, a)
End Sub
Sub TestGetValue2()
p = "c:\Files"
f = "Budget.xls"
s = "Sheet1"
Application.ScreenUpdating = False
For r = 1 To 100
For c = 1 To 12
a = Cells(r, c).Address
Cells(r, c) = GetValue(p, f, s, a)
Next c
Next r
Application.ScreenUpdating = True
End Sub