Sample program to create csv and write data

The following source code snippet write 3 lines in CSV and create a new csv using OpenFile function
package main

import (
	"encoding/csv"
	"os"
)

func main() {
	file, err := os.OpenFile("test.csv", os.O_CREATE|os.O_WRONLY, 0777)
	defer file.Close()

	if err != nil {
		os.Exit(1)
	}

	x := []string{"Country", "City", "Population"}
	y := []string{"Japan", "Tokyo", "923456"}
	z := []string{"Australia", "Sydney", "789650"}
	csvWriter := csv.NewWriter(file)
	strWrite := [][]string{x, y, z}
	csvWriter.WriteAll(strWrite)
	csvWriter.Flush()
}
C:\golang\example>go fmt samplecsv.go

C:\golang\example>

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