Why don't InsertCol && InsertRow work?

[bailin048]

Hello, when I was using Excel to read and write files recently, InsertCol and InsertRow did not work, but there was no error. I used a streaming writer when creating my file. After writing data, I closed the file handle. When I open the file again, any operation of writing data will fail, but reading data can.

In test.xlsx, produc exists.
f, _ := excelize.OpenFile("test.xlsx")
defer f.Close()
f.SetCellValue("product", "A2", "Hello world.")
err := f.InsertCol("product", "A")
if err != nil {
fmt.Println(err)
}