golang read&create file

package main

import (
	"encoding/base64"
	"io/ioutil"
	"os"
)

func main()  {
	fileR, _ := ioutil.ReadFile("/Users/XXX/Downloads/content.txt")
	decode, _ := base64.StdEncoding.DecodeString(string(fileR))
	fileW, _ := os.Create("/Users/XXX/Downloads/mock_ppt.pptx")
	fileW.Write(decode)
}