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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