When you try to import a Text file or an Access database table which has got more than 65,536 rows, you get it in to a ‘Capital F situation’ because Excel cant except more than 65,536 rows in a single work sheet. The only way some one would suggest will be :
1. Import the maximum number of rows which is allowed in a single work sheet first, (Which is 65536)
2. Open a new worksheet use text Import wizard and in ‘Start Import at Row’ filed enter 32,767. (Because it’s the maximum integer value the field can accept)
3. Import it the new work sheet and manually delete the rows which are repeated.
Something which doesn’t sound geeky at all. :-)
Same thing can be achieved without much of a stress using the following macro.
Sub LargeFileImport()
‘Dimension Variables
Dim ResultStr As String
Dim FileName As String
Dim FileNum As Integer
Dim Counter As Double
‘Ask User for File’s Name
FileName = InputBox(“Please enter the Text File’s name, e.g. test.txt”)
‘Check for no entry
If FileName = “” Then End
‘Get Next Available File Handle Number
FileNum = FreeFile()
‘Open Text File For Input
Open FileName For Input As #FileNum
‘Turn Screen Updating Off
Application.ScreenUpdating = False
‘Create A New WorkBook With One Worksheet In It
Workbooks.Add template:=xlWorksheet
‘Set The Counter to 1
Counter = 1
‘Loop Until the End Of File Is Reached
Do While Seek(FileNum) <= LOF(FileNum)
‘Display Importing Row Number On Status Bar
Application.StatusBar = “Importing Row ” & _
Counter & ” of text file ” & FileName
‘Store One Line Of Text From File To Variable
Line Input #FileNum, ResultStr
‘Store Variable Data Into Active Cell
If Left(ResultStr, 1) = “=” Then
ActiveCell.Value = “‘” & ResultStr
Else
ActiveCell.Value = ResultStr
End If
‘For Excel versions before Excel 97, change 65536 to 16384
If ActiveCell.Row = 65536 Then
‘If On The Last Row Then Add A New Sheet
ActiveWorkbook.Sheets.Add
Else
‘If Not The Last Row Then Go One Cell Down
ActiveCell.Offset(1, 0).Select
End If
‘Increment the Counter By 1
Counter = Counter + 1
‘Start Again At Top Of ‘Do While’ Statement
Loop
‘Close The Open Text File
Close
‘Remove Message From Status Bar
Application.StatusBar = False
End Sub
More information can be found here.