Searching for a string of text from the main body and footnotes and copying it and its following # characters into an excel document - vba

Question

I have a large number of documents which I need to pull out file name references from, spread out across large blocks of text and footnotes.
I currently have a word VBA code that I think should search for a string (for example "This_") and then the following # of characters, and then paste them into a waiting excel sheet. I am struggling to get it to search both the footnotes and the main body of text.
I've been using the code below, but my work at the moment is making it do something weird. It will find the string I am searching for, but then it will copy from the start of the document the number of times the string has been found -- not the string and its subsequent text.
Any help would be appreciated in modifying this, I believe the issue will be coming from the first half of the 'return data to array section.
Option Explicit
Option Base 1
Sub WordDataToExcel()
Dim myObj
Dim myWB
Dim mySh
Dim txt As String, Lgth As Long, Strt As Long
Dim i As Long
Dim oRng As Range
Dim Tgt As String
Dim TgtFile As String
Dim arr()
Dim ArrSize As Long
Dim ArrIncrement As Long
ArrIncrement = 1000
ArrSize = ArrIncrement
ReDim arr(ArrSize)
'Set parameters Change to your path and filename
TgtFile = "File.xlsx"
If IsWindowsOS Then
Tgt = "C:\users\user\" & TgtFile ' Windows OS
Else
Tgt = "MacintoshHD:Users:" & TgtFile 'Mac OS
End If
txt = InputBox("String to find")
Lgth = InputBox("Length of string to return")
Strt = Len(txt)
'Return data to array
ActiveDocument.StoryRanges(wdFootnotesStory).Select
With Selection.Find
.ClearFormatting
.Forward = True
.Text = txt
.MatchCase = True
.Execute
While .Found
i = i + 1
Set oRng = ActiveDocument.Range _
(Start:=Selection.Range.Start + Strt, _
End:=Selection.Range.End + Lgth)
arr(i) = oRng.Text
oRng.Start = oRng.End
.Execute
If i = ArrSize - 20 Then
ArrSize = ArrSize + ArrIncrement
ReDim Preserve arr(ArrSize)
End If
Wend
End With
ReDim Preserve arr(i)
'Set target and write data
Set myObj = CreateObject("Excel.Application")
Set myWB = myObj.workbooks.Open(Tgt)
Set mySh = myWB.sheets(1)
With mySh
.Range(.Cells(1, 1), .Cells(i, 1)) = myObj.transpose(arr)
End With
'Tidy up
myWB.Close True
myObj.Quit
Set mySh = Nothing
Set myWB = Nothing
Set myObj = Nothing
End Sub
Public Function IsWindowsOS() As Boolean
If Application.System.OperatingSystem Like "*Win*" Then
IsWindowsOS = True
Else
IsWindowsOS = False
End If
End Function

Answer 1

Your code is a little confused as there is an unholy mix of Selection and Range. It is good practice to avoid using Selection as it is very rarely necessary to select anything when working in VBA.
VBA also has compiler constants that can be used to detect, among other things, whether code is being run on a Mac. Not sure if the Mac constant still works reliably as I no longer have one to test on.
'Set parameters Change to your path and filename
TgtFile = "File.xlsx"
'This isn't necessary as there is a compiler constant that can be used to identify code is running on Mac
' If IsWindowsOS Then
' Tgt = "C:\users\user\" & TgtFile ' Windows OS
' Else
' Tgt = "MacintoshHD:Users:" & TgtFile 'Mac OS
' End If
#If Mac Then
Tgt = "MacintoshHD:Users:" & TgtFile 'Mac OS
#Else
Tgt = "C:\users\user\" & TgtFile ' Windows OS
#End If
txt = InputBox("String to find")
Lgth = InputBox("Length of string to return")
Strt = Len(txt)
'Return data to array
'not necessary to select the story range
'ActiveDocument.StoryRanges(wdFootnotesStory).Select
Set oRng = ActiveDocument.StoryRanges(wdFootnotesStory)
With oRng
With .Find
.ClearFormatting
.Forward = True
.Text = txt
.MatchCase = True
End With
While .Find.Execute
'a match has been found and oRng redefined to the range of the match
i = i + 1
.MoveEnd wdCharacter, Lgth
arr(i) = .Text
.Collapse wdCollapseEnd
If i = ArrSize - 20 Then
ArrSize = ArrSize + ArrIncrement
ReDim Preserve arr(ArrSize)
End If
Wend
End With

Answer 2

For example, the following code returns both the found text and its page reference:
Sub Demo()
Application.ScreenUpdating = False
Dim i As Long, j As Long, k As Long, StrFnd As String, StrOut As String
StrFnd = InputBox("String to find")
j = InputBox("String Length to find")
k = j - Len(StrFnd)
For i = 1 To k
StrFnd = StrFnd & "^?"
Next
With ActiveDocument
For i = 1 To 2 ' 1 = wdMainTextStory, 2 = wdFootnotesStory, 3 = wdEndnotesStory, etc.
With .StoryRanges(i)
With .Find
.ClearFormatting
.Text = StrFnd
.Forward = True
.Format = True
.MatchWildcards = False
.Wrap = wdFindStop
.Replacement.Text = ""
End With
Do While .Find.Execute = True
StrOut = StrOut & vbCr & .Text & vbTab
Select Case .StoryType
Case wdMainTextStory
StrOut = StrOut & .Information(wdActiveEndAdjustedPageNumber)
Case wdFootnotesStory
StrOut = StrOut & .Duplicate.Footnotes(1).Reference.Information(wdActiveEndAdjustedPageNumber)
End Select
Loop
End With
Next
End With
MsgBox StrOut
Application.ScreenUpdating = True
End Sub

Answer 3

This is an example of how to search multiple section of your document. Note that I'm using a Collection to gather up the items, so you don't have to keep increasing an array.
Option Explicit
Option Base 1
Sub test()
Dim allFound As Collection
Set allFound = TextFoundReport("This_", 10)
Dim entry As Variant
For Each entry In allFound
Dim partType As Long
Dim text As String
Dim tokens() As String
tokens = Split(entry, "|")
'--- here is where you copy to an Excel sheet
Debug.Print "Part type: " & tokens(0) & " - '" & tokens(1) & "'"
Next entry
End Sub
Private Function TextFoundReport(ByVal text As String, _
ByVal numberOfCharacters As Long) As Collection
Dim whatWeFound As Collection
Set whatWeFound = New Collection
'--- create a list of the document parts to search
Dim docParts As Variant
docParts = Array(wdMainTextStory, wdFootnotesStory, wdEndnotesStory, wdCommentsStory)
Dim foundRng As Range
Dim docPart As Variant
For Each docPart In docParts
ActiveDocument.StoryRanges(docPart).Select
'--- find all occurences in this part and add it to the collection
' the Item in the collection is the story type and the found text
With Selection.Find
.ClearFormatting
.Forward = True
.text = text
.MatchCase = True
.Execute
Do While .found
Set foundRng = ActiveDocument.Range _
(Start:=Selection.Range.Start + Len(text), _
End:=Selection.Range.End + numberOfCharacters)
whatWeFound.Add CLng(docPart) & "|" & foundRng.text
foundRng.Start = foundRng.End
.Execute
Loop
End With
Next docPart
Set TextFoundReport = whatWeFound
End Function