KNAE06257-E
The file name extension of the specified file is not "xls", "xlsm", "xlsx", or "csv". extension : {0}
[Cause]
The specified file extension is not "xls", "xlsm", "xlsx", or "csv".
[Action]
Specify a file for which the extension is "xls", "xlsm", "xlsx", or "csv".
0: File extension