Hi,

As a start, you could follow the instructions in this HowTo document. This is like a tutorial and after you have successfully completed it, you should be able to adapt it to your own Host (mainframe or AS400) environment.

https://www.microfocus.com/documentation/reflection-desktop/17-1/vba-guide/get-data-from-spreadsheet.html

Hi Rob, 

if you are using 64 bit office ou will not be able to use it's FileDialog.

Personally, I would just run with the Microsoft 32-bit common dialog.

here is some sample code:

Private Declare Function GetOpenFileName Lib "comdlg32.dll" Alias "GetOpenFileNameA" (pOpenfilename As OPENFILENAME) As Long

Private Type OPENFILENAME
lStructSize As Long
hwndOwner As Long
hInstance As Long
lpstrFilter As String
lpstrCustomFilter As String
nMaxCustFilter As Long
nFilterIndex As Long
lpstrFile As String
nMaxFile As Long
lpstrFileTitle As String
nMaxFileTitle As Long
lpstrInitialDir As String
lpstrTitle As String
flags As Long
nFileOffset As Integer
nFileExtension As Integer
lpstrDefExt As String
lCustData As Long
lpfnHook As Long
lpTemplateName As String
End Type

Function GetFileName() As String
Dim Filename As OPENFILENAME
Dim lReturn As Long
Dim sFilter As String
Filename.lStructSize = Len(Filename)
Filename.hwndOwner = &H0
sFilter = "All Files (*.*)" & Chr(0) & "*.*" & Chr(0) & _
"Text Files (*.txt)" & Chr(0) & "*.txt" & Chr(0) & _
"ABC Files (*.abc)" & Chr(0) & "*.abc" & Chr(0)
Filename.lpstrFilter = sFilter
Filename.nFilterIndex = 1
Filename.lpstrFile = String(257, 0)
Filename.nMaxFile = Len(Filename.lpstrFile) - 1
Filename.lpstrFileTitle = Filename.lpstrFile
Filename.nMaxFileTitle = Filename.nMaxFile
Filename.lpstrInitialDir = Environ$("USERPROFILE") & "\Documents"
Filename.lpstrTitle = "Open"
Filename.flags = 0
lReturn = GetOpenFileName(Filename)
If lReturn = 0 Then
MsgBox "No file selected"
Else
GetFileName = Trim(Left(Filename.lpstrFile, InStr(1, OpenFile.lpstrFile, &H0) - 1))
End If
End Function

Sub Test()
Dim MyFileName As String
MyFileName = GetFileName
If Len(MyFileName) > 0 Then
MsgBox MyFileName
End If
End Sub

Tom