How to export content to Excel in Go language

package main
    
import (
    "os"
    "encoding/csv"
)
    
func main() {
    f, err := ("")
    if err != nil {
        panic(err)
    }
    defer ()
    
("\xEF\xBB\xBF") // Write to UTF-8 BOM
    
    w := (f)
([]string{"number","name","age"})
([]string{"1","Zhang San","23"})
([]string{"2","Li Si","24"})
([]string{"3","Wang Wu","25"})
([]string{"4","Zhao Liu","26"})
    ()
}