VBA variable declaration and assignment help

Sub Open_My_Files()
    Dim MyFile    As String    ' File to be appeneded
    Dim MyPath    As String    ' Pathname to where CSV files are kept
    Dim shIDS     As Worksheet ' Inspection Data Sheet
    Dim shCSV     As Worksheet ' CSV worksheet
    Dim rngAxis   As Range
    Dim rngNext   As Range
    
    Application.DisplayAlerts = False
    
    ' Initialize Variable
    Set shIDS = Worksheets("Inspection Data Sheet")
    MyPath = "C:\\users\amirfar1\desktop\"
    MyFile = Dir(MyPath & "*.csv")
    ' With this synatax, you are telling Dir to get files that match *.csv - no need for an if statement later
    
    ' Loop through files
    Do While MyFile <> ""
    
        ' Open the CSV file
        With Workbooks.Open(MyPath & "\" & MyFile)
            ' We can "get away with the following because we know the CSV file is active since we just opened it.
            ' We also know that CSV files only have one sheet
            ' Copy sheet to this workbook
            .Sheets(1).Copy After:=ThisWorkbook.Sheets(ThisWorkbook.Sheets.Count)
            ' close the workbook
            .Close SaveChanges:=False
        End With
    
        Set shCSV = ThisWorkbook.Sheets(ThisWorkbook.Sheets.Count)
        shCSV.Name = Replace(MyFile, ".csv", "")
    
        Set rngAxis = shCSV.Cells.Find(What:="axis", _
                                       LookIn:=xlFormulas, _
                                       LookAt:=xlPart, _
                                       SearchOrder:=xlByRows, _
                                       SearchDirection:=xlNext, _
                                       MatchCase:=False, _
                                       SearchFormat:=False)
    
        If Not rngAxis Is Nothing Then                                      'Test if axis found
            If UCase(rngAxis.Offset(1, 0).Value) = "TP" Then            'Test if TP found below axis
                Set rngNext = shIDS.Range("C1:C32, C41:C67, C77:C103, C113:C139").Find("", , xlValues, , 1, 1)  'Find next empty cell
                If Not rngNext Is Nothing Then
                    rngNext.Value = rngAxis.Offset(1, 3).Value     'copy value to empty cell.
                Else
                    'No more empty cells in range
                End If
            Else
                'No TP found after axis
            End If
        Else
            'Axis not found
        End If
    
        ' Get the next file
        MyFile = Dir()
    Loop
    
    Application.DisplayAlerts = True
    
End Sub