Sub Demo()
Application.ScreenUpdating = True
Dim xlApp As Object, xlWkBk As Object, StrWkBkNm As String, StrWkSht As String
Dim bStrt As Boolean, bFound As Boolean
StrWkBkNm = "C:\Users\" & Environ("Username") & "\Documents\Workbook Name.xls"
StrWkSht = "Sheet1"
If Dir(StrWkBkNm) = "" Then
MsgBox "Cannot find the designated workbook: " & StrWkBkNm, vbExclamation
Exit Sub
End If
' Test whether Excel is already running.
On Error Resume Next
bStrt = False ' Flag to record if we start Excel, so we can close it later.
Set xlApp = GetObject(, "Excel.Application")
'Start Excel if it isn't running
If xlApp Is Nothing Then
Set xlApp = CreateObject("Excel.Application")
If xlApp Is Nothing Then
MsgBox "Can't start Excel.", vbExclamation
Exit Sub
End If
' Record that we've started Excel.
bStrt = True
End If
On Error GoTo 0
'Check if the workbook is open.
bFound = False
With xlApp
'Hide our Excel session
If bStrt = True Then .Visible = False
For Each xlWkBk In .Workbooks
If xlWkBk.FullName = StrWkBkNm Then ' It's open
Set xlWkBk = xlWkBk
bFound = True
Exit For
End If
Next
' If not open by the current user.
If bFound = False Then
' Check if another user has it open.
If IsFileLocked(StrWkBkNm) = True Then
' Report and exit if true
MsgBox "The Excel workbook is in use." & vbCr & "Please try again later.", vbExclamation, "File in use"
If bStrt = True Then .Quit
Exit Sub
End If
' The file is available, so open it.
Set xlWkBk = .Workbooks.Open(FileName:=StrWkBkNm)
If xlWkBk Is Nothing Then
MsgBox "Cannot open:" & vbCr & StrWkBkNm, vbExclamation
If bStrt = True Then .Quit
Exit Sub
End If
End If
' Process the workbook.
With xlWkBk.Worksheets(StrWkSht)
'''********* Do your worksheet processing here
End With
If bFound = False Then xlWkBk.Close False
If bStrt = True Then .Quit
End With
' Release Excel object memory
Set xlWkBk = Nothing: Set xlApp = Nothing
Application.ScreenUpdating = True
End Sub
Function IsFileLocked(strFileName As String) As Boolean
On Error Resume Next
Open strFileName For Binary Access Read Write Lock Read Write As #1
Close #1
IsFileLocked = Err.Number
Err.Clear
End Function