Create a file as Book1.xlsx, but it's a empty file

[qingningba]

goversion 1.21.0
excelize 2.8.1

f := excelize.NewFile() defer func() { if err := f.Close(); err != nil { fmt.Println(err) } }() // 创建一个工作表 index, err := f.NewSheet("Sheet2") if err != nil { fmt.Println(err) return } // 设置单元格的值 f.SetCellValue("Sheet2", "A2", "Hello world.") f.SetCellValue("Sheet1", "B2", "234") // 设置工作簿的默认工作表 f.SetActiveSheet(index) // 根据指定路径保存文件 if err := f.SaveAs("Book1.xlsx"); err != nil { fmt.Println(err) }
I used the official codes, Book1.xlsx is generated, but when I opened it, there is no content in it.
Before this, I used stream method for download xlsx, it's very ok, the content is in it, but today I use SaveAs method, the content is empty. I send the Book1.xlsx to my other colleagues, they use Macs or PCs, they can't open it either, so I wanna know why I can't get the right content.