Update CSV File

Demonstrates how to read a CSV, update some cells, and save.

The Chilkat CSV library/component/class is freeware. The downloads for .NET, C++, Perl, Java, Ruby, and Python contain all of the Chilkat classes, some of which are freeware and some of which require licensing.

Download Chilkat CSV ActiveX (freeware)

LOCAL loCsv
LOCAL lnSuccess
LOCAL lcCsvDoc

*  This example program loads a file (sample.csv)
*  that contains this content:
* 
*  year,color,country,food
*  2001,red,France,cheese
*  2005,blue,"United States",hamburger
*  2008,green,Italy,pasta
*  1998,orange,Japan,sushi
* 
*  The first row contains the column names.
*  This file is available at:
*  http://www.chilkatsoft.com/testData/sample.csv

loCsv = CreateObject('Chilkat.Csv')

*  Prior to loading the CSV file, indicate that the 1st row
*  should be treated as column names:
loCsv.HasColumnNames = 1

*  Load the CSV records from the file:

lnSuccess = loCsv.LoadFile("sample.csv")
IF (lnSuccess <> 1) THEN
    =MESSAGEBOX(loCsv.LastErrorText)
    QUIT
ENDIF

*  Change "cheese" to "baguette"
*  ("cheese" is at row=0, column=3
loCsv.SetCell(0,3,"baguette")

*  Change "blue" to "magenta"
loCsv.SetCell(1,1,"magenta")

*  Write the updated CSV to a string and display:

lcCsvDoc = loCsv.SaveToString()
? lcCsvDoc

*  Save the CSV to a file:
lnSuccess = loCsv.SaveFile("out.csv")
IF (lnSuccess <> 1) THEN
    =MESSAGEBOX(loCsv.LastErrorText)
ENDIF