Need some advice on how to stream line ACCESS/EXCEL VBA - excel

Question

I wrote this Access/VBA program. It works but only when I am not running other applications or few users are in the database. I need some ideas on streamlining the code. So it is not so system intensive. The program basically allows a user to pick a folder and then combines all worksheets in that folder in one excel document. My current idea is just to tell users to close all excel files when trying to run the program. Please Help:
Sub Excel_open()
Dim myXL As Excel.Application
Dim myXLS As Excel.Workbook
Const errExcelNotRunning = 429
On Error GoTo HandleIt
Set myXL = GetObject(, "Excel.application")
myXL.Visible = True
Set myXLS = myXL.Workbooks.Add
Call CombineWorkbooks(myXL)
HandleIt:
If Err.Number = errExcelNotRunning Then
Set myXL = CreateObject("Excel.Application")
Err.Clear
Resume Next
End If
End Sub
Sub CombineWorkbooks(myXL)
'Macro that combines the files into one folder
myXL.AskToUpdateLinks = False
myXL.DisplayAlerts = False
Dim CurFile As String, dirloc As String, strNamesheet As String
Dim DestWB As Workbook
Dim ws As Object ' allows for diffrent sheet types
'Add select the director function
dirloc = GetFolderName & "\" 'location of files not working want to select the file only
CurFile = Dir(dirloc & "*.xls*")
myXL.ScreenUpdating = False
myXL.EnableEvents = False
Set DestWB = Workbooks.Add(xlWorksheet)
Do While CurFile <> vbNullString
Dim OrigWB As Workbook
Set OrigWB = Workbooks.Open(FileName:=dirloc & CurFile, ReadOnly:=True)
'need to change a name active name is not doing it
CurFile = Left(CurFile, 4) ' This is no longer 29
'CurFile = Left(Left(CurFile, Len(CurFile) - 5), 29)
For Each ws In OrigWB.Sheets
ws.Copy After:=DestWB.Sheets(DestWB.Sheets.Count)
' Use the name to give the sheet a name
strNamesheet = Left((ws.Name), 25) & ";"
If OrigWB.Sheets.Count > 1 Then
DestWB.Sheets(DestWB.Sheets.Count).Name = strNamesheet & CurFile ' & ws.Index
Else
DestWB.Sheets(DestWB.Sheets.Count).Name = CurFile
End If
Next
OrigWB.Close SaveChanges:=False
CurFile = Dir
Loop
myXL.DisplayAlerts = False
DestWB.Sheets(1).Delete
myXL.DisplayAlerts = True
myXL.ScreenUpdating = True
myXL.EnableEvents = True
Set DestWB = Nothing
Call Delete_empty_Sheets(myXL)
Call Sort_Active_Book
MsgBox "Done"
'Call Xcombine_the_Matching
End Sub
Sub Delete_empty_Sheets(myXL)
'goes through all sheets and deletes
Reset_the_search:
For Each wsElement In Worksheets
If wsElement.Range("A2") = "" And wsElement.Range("B2") = "" Then
myXL.DisplayAlerts = False
wsElement.Delete
GoTo Reset_the_search
myXL.DisplayAlerts = True
End If
Next wsElement
End Sub
Sub Xcombine_the_Matching()
'I think I can make the order work
'change and transpose the array
Dim varStart As Variant
Dim wsCompare As Worksheet
Dim strMatch As String
'Dim varCompare As Variant
Dim strVareince As String
Dim strCurrentName As String
'you need to build a loop to solve this problem
For Each wsCompare In Worksheets
strVareince = Add_Array(Application.Transpose(wsCompare.Range("A1:Z1")))
For Each wsNompare In Worksheets
If wsNompare.Name <> strCurrentName Then
If strVareince = Add_Array(Application.Transpose(wsNompare.Range("A1:Z1"))) Then
MsgBox ("Matched with worksheet " & wsNompare.Name)
End If
End If
Next
Next
End Sub
Function array_to_string(x) As String
For Z = 1 To 26
array_to_string = array_to_string & x(Z, 1) & ";"
Next Z
End Function
Function GetFolderName(Optional OpenAt As String) As String
'Allows you to select the folder director that you want to combine
Dim lCount As Long
GetFolderName = vbNullString
With Application.FileDialog(msoFileDialogFolderPicker)
.InitialFileName = OpenAt
.Show
For lCount = 1 To .SelectedItems.Count
GetFolderName = .SelectedItems(lCount)
Next lCount
End With
End Function
Function Add_Array(x) As String
'turns an excel document
For d = 1 To UBound(x)
Add_Array = Add_Array & x(d, 1)
Next d
End Function
Sub Read_data()
'this the
End Sub
Sub Sort_Active_Book()
Dim i As Integer
Dim j As Integer
Dim iAnswer As VbMsgBoxResult
'
' Prompt the user as which direction they wish to
' sort the worksheets.
'
iAnswer = MsgBox("Sort Sheets in Ascending Order?" & Chr(10) _
& "Clicking No will sort in Descending Order", _
vbYesNoCancel + vbQuestion + vbDefaultButton1, "Sort Worksheets")
For i = 1 To Sheets.Count
For j = 1 To Sheets.Count - 1
'
' If the answer is Yes, then sort in ascending order.
'
If iAnswer = vbYes Then
If UCase$(Sheets(j).Name) > UCase$(Sheets(j + 1).Name) Then
Sheets(j).Move After:=Sheets(j + 1)
End If
'
' If the answer is No, then sort in descending order.
'
ElseIf iAnswer = vbNo Then
If UCase$(Sheets(j).Name) < UCase$(Sheets(j + 1).Name) Then
Sheets(j).Move After:=Sheets(j + 1)
End If
End If
Next j
Next i
End Sub

Answer 1

You are passing your Excel Application object into your subroutines, but not using it fully, neither are you explicitly referencing the libraries:
Sub CombineWorkbooks(myXL)
Dim DestWB As Excel.Workbook ' <<<
Set DestWB = myXL.Workbooks.Add(xlWorksheet) ' <<<
End Sub
Run through your code and fix all of these first, then test & supply more feedback on what the precise symptoms of the problems are.