VBA- Import Multiple CSV to a Sheet, Remove Certain Rows/Columns - vba

Question

I am completely new to VBA, but I have CSV files(same format for all of them), and I want to import them to a single sheet on Excel. I was able to read the CSV file according to this code:
Sub R_AnalysisMerger()
Dim WSA As Worksheet
Dim bookList As Workbook
Dim SelectedFiles() As Variant
Dim NFile As Long
Dim FileName As String
Dim ws As Worksheet, vDB As Variant, rngT As Range
Application.ScreenUpdating = False
'Selects the CSV files as SELECTED FILES
Set ws = ThisWorkbook.Sheets(1)
ws.UsedRange.Clear 'Clears current worksheet
SelectedFiles = Application.GetOpenFilename(filefilter:="Excel Files (*.csv*), *.csv*", MultiSelect:=True) 'Selects csv files
For NFile = LBound(SelectedFiles) To UBound(SelectedFiles)
FileName = SelectedFiles(NFile)
Set bookList = Workbooks.Open(FileName, Format:=2)
Set WSA = bookList.Sheets(1)
With WSA
vDB = .UsedRange
Set rngT = ws.Range("a" & Rows.count).End(xlUp)(2)
If rngT.Row = 2 Then Set rngT = ws.Range("A1")
rngT.Resize(UBound(vDB, 1), UBound(vDB, 2)) = vDB
bookList.Close (0)
End With
Next
Application.ScreenUpdating = True
ws.Range("A1").Select
But I have additional requirements:
Skip the first column.
Skip the first four rows.
Remove a certain String from each word in the fifth row.
Im used to java, and usually I would read each line with a "for" loop and set "if" statements to skip the first row and four columns and remove the string from each string if it was present.
I don't know how to do this with this code. From what I understand it just copies the whole CSV file into the sheet?

Answer 1

This solution is based on reading CSV as textstream. I have tried to include feature that makes possible most all things like selecting columns, Rows and so on.
Sub ImportCSV()
Dim fso As New IWshRuntimeLibrary.FileSystemObject
Dim txtStream As IWshRuntimeLibrary.TextStream
Dim files As IWshRuntimeLibrary.files
Dim file As IWshRuntimeLibrary.file
Dim txtLine As String
Dim lineCount As Integer
Dim lastRow As Integer
Dim lineCol As Variant
Dim rng As Range
Application.ScreenUpdating = False
ThisWorkbook.Sheets(1).usedRange.Delete
Set rng = ThisWorkbook.Sheets(1).usedRange
lastRow = 1
Set files = fso.GetFolder("path\folder").files
For Each file In files
If file.Name Like "*.csv" Then
Set txtStream = file.OpenAsTextStream(ForReading, TristateUseDefault)
txtStream.SkipLine ' skip first line, since it containes headers
lineCount = 1
Do
txtLine = txtStream.ReadLine
If lineCount = 5 Then
txtLine = Replace(txtLine, "stringToReplace", "StringToReplcaeWith") ' replace certain string from words in 5'th row
End If
lineCount = lineCount + 1
lineCol = sliceStr(Split(txtLine, ";"), startIdx:=4) ' slice the array so to skip four first columns
For iCol = 0 To UBound(lineCol) ' write columns to last row
rng(lastRow, iCol + 1).Value = lineCol(iCol)
Next iCol
lastRow = lastRow + 1
'Debug.Print Join(lineCol, ";") ' debug
Loop Until txtStream.AtEndOfStream
End If
Next file
Application.ScreenUpdating = True
End Sub
This is the slicer function
Function sliceStr(arr As Variant, startIdx As Integer, Optional stopIdx As Integer = 0) As String()
If stopIdx = 0 Then
stopIdx = UBound(arr)
End If
Dim tempArrStr() As String
ReDim tempArrStr(stopIdx - startIdx)
Dim counter As Integer
counter = 0
For i = startIdx To stopIdx
tempArrStr(counter) = arr(i)
counter = counter + 1
Next
sliceStr = tempArrStr
End Function

Answer 2

I just did a simple test and the code below seems to work. Give it a go, and feedback.
Sub Demo()
Dim fso As Object 'FileSystemObject
Dim fldStart As Object 'Folder
Dim fld As Object 'Folder
Dim fl As Object 'File
Dim Mask As String
Application.ScreenUpdating = False
Dim newWS As Worksheet
Set newWS = Sheets.Add(before:=Sheets(1))
Set fso = CreateObject("scripting.FileSystemObject") ' late binding
'Set fso = New FileSystemObject 'or use early binding (also replace Object types)
Set fldStart = fso.GetFolder("C:\Users\ryans\OneDrive\Desktop\output\") ' <-- use your FileDialog code here
Mask = "*.csv"
'Debug.Print fldStart.Path & ""
ListFiles fldStart, Mask
For Each fld In fldStart.SubFolders
ListFiles fld, Mask
ListFolders fld, Mask
Next
Dim myWB As Workbook, WB As Workbook
Set myWB = ThisWorkbook
Dim L As Long, t As Long, i As Long
L = myWB.Sheets(1).Cells(Rows.Count, "A").End(xlUp).Row
t = 1
For i = 1 To L
Workbooks.OpenText Filename:=myWB.Sheets(1).Cells(i, 1).Value, DataType:=xlDelimited, Tab:=True
Set WB = ActiveWorkbook
lrow = WB.Sheets(1).Cells(Rows.Count, "A").End(xlUp).Row
WB.Sheets(1).Range("B4:E" & lrow).Copy newWS.Cells(t, 2)
t = myWB.Sheets(1).Cells(Rows.Count, "B").End(xlUp).Row + 1
WB.Close False
Next
myWB.Sheets(1).Columns(1).Delete
Application.ScreenUpdating = True
End Sub
Sub ListFolders(fldStart As Object, Mask As String)
Dim fld As Object 'Folder
For Each fld In fldStart.SubFolders
'Debug.Print fld.Path & ""
ListFiles fld, Mask
ListFolders fld, Mask
Next
End Sub
Sub ListFiles(fld As Object, Mask As String)
Dim t As Long
Dim fl As Object 'File
For Each fl In fld.Files
If fl.Name Like Mask Then
t = Sheets(1).Cells(Rows.Count, "A").End(xlUp).Row + 1
'Debug.Print fld.Path & "" & fl.Name
If Sheets(1).Cells(1, 1) = "" Then
Sheets(1).Cells(1, 1) = fld.Path & "\" & fl.Name
Else
Sheets(1).Cells(t, 1) = fld.Path & "\" & fl.Name
End If
End If
Next
End Sub