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XL2000: Macro to Append Text from One Text File to Another


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Summary

The "More Information" section of this article contains sample Microsoft Visual Basic for Applications macros (Sub procedures) that you can use to append the contents of one text file to another.

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More information

Microsoft provides programming examples for illustration only, without warranty either expressed or implied, including, but not limited to, the implied warranties of merchantability and/or fitness for a particular purpose. This article assumes that you are familiar with the programming language being demonstrated and the tools used to create and debug procedures. Microsoft support professionals 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 needs.
If you have limited programming experience, you may want to contact a Microsoft Certified Partner or Microsoft Advisory Services. For more information, visit these Microsoft Web sites:

Microsoft Certified Partners - https://partner.microsoft.com/global/30000104

Microsoft Advisory Services - http://support.microsoft.com/gp/advisoryservice

For more information about the support options that are available and about how to contact Microsoft, visit the following Microsoft Web site:http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS In the following macro examples, the AppendFiles1 and AppendFiles2 macros take the data from one text file, Source.txt, and append it to the data in the Dest.txt text file.

To set up the example, use a text editor such as Notepad to create the following text files.

The Dest.txt file should contain the following information:
   Last Name, First Name, Address, City, State, Zip Code
   John,Smith,1 Main St.,Seattle,WA,12345
   Jane,Doe,2 East Rd,Charlotte,NC,52631
   Tom,Jones,3 West Cir.,Tuscon,AZ,36258
				
The Source.txt file should contain the following information:
   Bill,Adams,6 Elm Ln.,Seattle,WA,85692
   Sue,Thompson,33 Maple Ct.,Las Colinas,TX,58692
   Jerry,Brown,32 Main Rd.,Tuscon,AZ,96524
   Pamela,Smith,88 Rain Rd.,Charlotte,NC,89526
				
Use file input and output (file I/O) commands in a Visual Basic macro.

The following macro demonstrates how you can use the Open, Line Input, and Print statements to read data from one text file and append it to another.
   Sub AppendFiles1()

      Dim SourceNum As Integer
      Dim DestNum As Integer
      Dim Temp As String

      ' If an error occurs, close the files and end the macro.
      On Error GoTo ErrHandler

      ' Open the destination text file.
      DestNum = FreeFile()
      Open "DEST.TXT" For Append As DestNum

      ' Open the source text file.
      SourceNum = FreeFile()
      Open "SOURCE.TXT" For Input As SourceNum

      ' Include the following line if the first line of the source
      ' file is a header row that you do now want to append to the
      ' destination file:
      ' Line Input #SourceNum, Temp

      ' Read each line of the source file and append it to the
      ' destination file.
      Do While Not EOF(SourceNum)
         Line Input #SourceNum, Temp
         Print #DestNum, Temp
      Loop

   CloseFiles:

      ' Close the destination file and the source file.
      Close #DestNum
      Close #SourceNum
      Exit Sub

   ErrHandler:

      MsgBox "Error # " & Err & ": " & Error(Err)
      Resume CloseFiles

   End Sub
				
After you run the macro, Dest.txt should resemble the following:
   Last Name, First Name, Address, City, State, Zip Code
   John,Smith,1 Main St.,Seattle,WA,12345
   Jane,Doe,2 East Rd,Charlotte,NC,52631
   Tom,Jones,3 West Cir.,Tuscon,AZ,36258
   Bill,Adams,6 Elm Ln.,Seattle,WA,85692
   Sue,Thompson,33 Maple Ct.,Las Colinas,TX,58692
   Jerry,Brown,32 Main Rd.,Tuscon,AZ,96524
   Pamela,Smith,88 Rain Rd.,Charlotte,NC,89526
				

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References

For more information about writing data to files, in the Visual Basic Editor, click Microsoft Visual Basic Help on the Help menu, type writing data to files in the Office Assistant or the Answer Wizard, and then click Search to view the topic.

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 OFF2000: Programming Resources for Visual Basic for Applications

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Keywords: KB213642, kbprogramming, kbhowto, kbdtacode

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Article Info
Article ID : 213642
Revision : 8
Created on : 11/23/2006
Published on : 11/23/2006
Exists online : False
Views : 269