Microsoft Excel spreadsheets have 256 columns (column IV).
Therefore, Excel cannot accept data with more than 256 fields per record on a
worksheet. When you attempt to manually import data from a database or text
file that has more than 256 fields per record, the additional fields are
truncated from the records.
You can use a Visual Basic for
Applications macro to import the data across multiple sheets. This article
provides a sample macro that imports a Comma Separated Variable (CSV) formatted
database with up to 510 fields into Excel. The macro places the first 256
fields on one sheet in the workbook and the remaining fields (beginning with
the 257th field) on a second sheet in the workbook.
Microsoft provides programming examples for illustration only, without warranty either expressed or implied. This includes, but is not limited to, the implied warranties of merchantability or fitness for a particular purpose. This article assumes that you are familiar with the programming language that is being demonstrated and with the tools that are used to create and to debug procedures. Microsoft support engineers can help explain the functionality of a particular procedure, but they will not modify these examples to provide added functionality or construct procedures to meet your specific requirements. If your database is in a format other than CSV,
resave the database in the CSV format before you import it using the following
macro.
Start or switch to Excel.
On the Tools menu, point to Macro, and then click Visual Basic Editor.
On the Insert menu, click Module.
In the module, type the following code:
Sub LargeDatabaseImport()
'In the event of an error, make sure the application is reset to
'normal.
On Error GoTo ErrorCheck
'Dimension Variables
Dim ResultStr As String
Dim FileName As String
Dim FileNum As Integer
Dim Counter As Double
Dim CommaCount As Integer
Dim WorkResult As String
'Ask for the name of the file.
FileName = InputBox("Please type the name of your text file, for example, test.txt")
'Turn off ScreenUpdating and Events so that users can't see what is
'happening and can't affect the code while it is running.
Application.ScreenUpdating = False
Application.EnableEvents = False
'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 ScreenUpdating off.
Application.ScreenUpdating = False
'Set the counter to 1.
Counter = 1
'Place the data in the first row of the column.
Range("A1").Activate
'Loop until the end of file is reached.
Do While Seek(FileNum) <= LOF(FileNum)
'Show row number being imported 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
'Initialize the CommaCount variable to zero.
CommaCount = 0
'Store the entire string into a second, temporary string.
WorkResult = ResultStr
'Parse through the first line of data and separate out records
'257 to 510.
While CommaCount < 255
WorkResult = Right(WorkResult, Len(WorkResult) - InStr(1, WorkResult, ","))
CommaCount = CommaCount + 1
Wend
'Parse out any leading spaces.
If Left(WorkResult, 1) = " " Then WorkResult = Right(WorkResult, Len(WorkResult) - 1)
'Ensure that any records that contain an "=" sign are
'brought in as text, and set the value of the current
'cell to the first 256 records.
If Left(WorkResult, 1) = "=" Then
ActiveCell.Value = "'" & Left(ResultStr, Len(ResultStr) - Len(WorkResult))
Else
ActiveCell.Value = Left(ResultStr, Len(ResultStr) - Len(WorkResult))
End If
'Ensure that any records that contain an "=" sign are
'brought in as text,and set the value of the next cell
'to the last 256 records.
If Left(WorkResult, 1) = "=" Then
ActiveCell.Offset(0, 1).Value = "'" & WorkResult
Else
ActiveCell.Offset(0, 1).Value = WorkResult
End If
'Move down one cell.
ActiveCell.Offset(1, 0).Activate
'Increment the Counter by 1.
Counter = Counter + 1
'Start again at top of 'Do While' statement.
Loop
'Close the open text file.
Close
'Take records 257-510 and move them to sheet two.
Columns("B:B").Select
Selection.Cut
Sheets("Sheet2").Select
Columns("A:A").Select
ActiveSheet.Paste
'Run the text-to-columns wizard on both sheets.
Selection.TextToColumns Destination:=Range("A1"), DataType:=xlDelimited, _
TextQualifier:=xlDoubleQuote, ConsecutiveDelimiter:=False, Tab:=False, _
Semicolon:=False, Comma:=True, Space:=False, Other:=False, FieldInfo _
:=Array(Array(1, 1), Array(2, 1), Array(3, 1))
Sheets("Sheet1").Select
Columns("A:A").Select
Selection.TextToColumns Destination:=Range("A1"), DataType:=xlDelimited, _
TextQualifier:=xlDoubleQuote, ConsecutiveDelimiter:=False, Tab:=False, _
Semicolon:=False, Comma:=True, Space:=False, Other:=False, FieldInfo _
:=Array(Array(1, 1), Array(2, 1), Array(3, 1))
'Reset the application to its normal operating environment.
Application.StatusBar = False
Application.EnableEvents = True
Application.ScreenUpdating = True
Exit Sub
ErrorCheck:
'Reset the application to its normal operating environment.
Application.StatusBar = False
Application.EnableEvents = True
Application.ScreenUpdating = True
MsgBox "An error occured in the code."
End Sub
On the File menu, click Close and Return to Microsoft Excel.
On the Tools menu, point to Macro, and then click Macros.
In the list of macros, select the LargeDatabaseImport macro. Click Run.
In the dialog box that appears, type the path and file name
of the CSV file you want to import.
For more information about how to use the sample code in
this article, click the article number below to view the article in the
Microsoft Knowledge Base:
212536
(http://support.microsoft.com/kb/212536/EN-US/
)
OFF2000: How to Run Sample Code from Knowledge Base Articles
For additional information about getting help with
Visual Basic forApplications, click the article number below to view the
article in the Microsoft Knowledge Base:
226118
(http://support.microsoft.com/kb/226118/EN-US/
)
OFF2000: Programming Resources for Visual Basic for Applications
For additional
information about Excel specifications and limiatons, click the following
article number to view the article in the Microsoft Knowledge Base:
264626
(http://support.microsoft.com/kb/264626/
)
Description of Excel 2000 specifications