Hi, I could not get the AcceptedFileTypes defined for files ending to “.xls” within the Upload-Component of Vaadin14.
*.xlsx is easy.
I tried this content-types:
- application/vnd.ms-excel (official)
- application/msexcel
- application/x-msexcel
- application/x-ms-excel
- application/x-excel
- application/x-dos_ms_excel
- application/xls
- application/x-xls