Excel VBA: connecting piece of the code in one solution

Let say I there is 2 txt databases which looks like this :
txt 1#

96.18      96.18      96.15      96.15      5620      5/12/2015 13:12
96.175      96.185      96.17      96.18      3904      5/12/2015 13:13
96.15      96.175      96.15      96.17      6790      5/12/2015 13:14
96.16      96.17      96.15      96.15      4803      5/12/2015 13:15
96.14      96.165      96.13      96.16      5560      5/12/2015 13:16
96.12      96.14      96.11      96.14      4051      5/12/2015 13:17
96.105      96.13      96.105      96.12      5312      5/12/2015 13:18
96.06      96.1      96.06      96.1      4202      5/12/2015 13:19
96.08      96.08      96.03      96.05      4969      5/12/2015 13:20
96.09      96.09      96.07      96.0701      1801      5/12/2015 13:21
96.11      96.115      96.09      96.09      7311      5/12/2015 13:22
96.11      96.11      96.11      96.11      1550      5/12/2015 13:23
96.1      96.11      96.09      96.105      9401      5/12/2015 13:24
96.11      96.12      96.09      96.095      3902      5/12/2015 13:25
96.11      96.12      96.1      96.11      3100      5/12/2015 13:26
96.11      96.11      96.1      96.11      4065      5/12/2015 13:27
96.15      96.15      96.1101      96.1101      4917      5/12/2015 13:28
96.14      96.14      96.135      96.14      2000      5/12/2015 13:29
96.11      96.135      96.11      96.13      6704      5/12/2015 13:30

txt 2#

96.11      96.12      96.1      96.11      3100      5/12/2015 13:26
96.11      96.11      96.1      96.11      4065      5/12/2015 13:27
96.15      96.15      96.1101      96.1101      4917      5/12/2015 13:28
96.14      96.14      96.135      96.14      2000      5/12/2015 13:29
96.11      96.135      96.11      96.13      6704      5/12/2015 13:30
96.115      96.13      96.104      96.104      3803      5/12/2015 13:31
96.105      96.12      96.105      96.1138      5170      5/12/2015 13:32
96.12      96.135      96.12      96.12      6859      5/12/2015 13:33
96.14      96.14      96.12      96.121      2650      5/12/2015 13:34
96.12      96.15      96.12      96.14      6507      5/12/2015 13:35
96.13      96.13      96.12      96.12      2200      5/12/2015 13:36
96.095      96.13      96.08      96.13      18145      5/12/2015 13:37
96.1101      96.119      96.085      96.09      6526      5/12/2015 13:38
96.14      96.14      96.115      96.12      4209      5/12/2015 13:39

As you can see the databases in overlapping in some point which I mark as bold and italic.  I need to write application that will merge these to databases and write it down in the first txt file. Hopefully, with expect helps, I already wrote the main piece of the code. So the true task is just connect the piece of the code that I presented below.

First piece code uploads data from txt to spreadsheet  :

Sub ImportFile()
Dim fd As FileDialog
Dim strFile As String
Dim FF As Integer
Dim strLine As String
Dim strParts() As String
Dim lngNewRow As Long
Dim intParts As Integer

Set fd = Application.FileDialog(msoFileDialogFilePicker)

With fd
    .Filters.Clear
    .Filters.Add "Text files", "*.txt"
    .Filters.Add "All files", "*.*"
    If .Show = -1 Then
        strFile = .SelectedItems(1)
    Else
        MsgBox "Cancel selected"
        Exit Sub
    End If
End With
Set fd = Nothing

FF = FreeFile
Open strFile For Input As #FF

Do While Not EOF(FF)
    Line Input #FF, strLine
    strParts = Split(strLine, vbTab)
    lngNewRow = lngNewRow + 1
    With ActiveSheet
        For intParts = 0 To UBound(strParts)
            .Cells(lngNewRow, intParts + 1) = strParts(intParts)
        Next
    End With
Loop
Close
End Sub

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This is the solution how to remove duplication in the sheet

Sub RemoveDupes()
Dim lngLastRow As Long

With ActiveSheet

    lngLastRow = ActiveSheet.UsedRange.Rows.Count
    .Columns("A:F").Select
    .Range("A1:F" & lngLastRow).RemoveDuplicates Columns:=Array(1, 2, 3, 4, 5, 6) _
        , Header:=xlNo
        

    .Sort.SortFields.Clear
    .Sort.SortFields.Add Key:=Range("F1"), _
    SortOn:=xlSortOnValues, Order:=xlAscending, DataOption:=xlSortNormal
    With .Sort
        .SetRange Range("A1:F" & lngLastRow)
        .Header = xlNo
        .MatchCase = False
        .Orientation = xlTopToBottom
        .SortMethod = xlPinYin
        .Apply
    End With
 
    
End With

End Sub

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And there is the solution how to import sheet data to txt.

Sub ConvertToTabDelimited()
    Dim TempSht As Worksheet
    Dim rRng As Range
    Dim sFullPath As String, sName As String
    
    sName = Sheets("Parameters").Range("D9") & Format(Sheets("Data").Range("G8"), " dd mm yy hh") & ".txt"
  
    sFullPath = ThisWorkbook.Path & Application.PathSeparator & sName
    With Application
        .ScreenUpdating = False
        On Error GoTo err_quit
        With Sheet2
            Set rRng = .Range(.Cells(8, 2), .Cells(.Rows.Count, 7).End(xlUp))
        End With
        Set TempSht = Sheets.Add
        rRng.Copy
        TempSht.Range("A1").PasteSpecial (xlPasteValuesAndNumberFormats)
        TempSht.Copy
        ActiveWorkbook.SaveAs Filename:=sFullPath, FileFormat:=xlText, CreateBackup:=False
        .DisplayAlerts = False
        TempSht.Delete
        ActiveWorkbook.Close True
        .DisplayAlerts = True

err_quit:
        .ScreenUpdating = True
    End With
End Sub

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Please help me to connect these pieces of code in one solution. Many thx in advance !