Hello everyone,
I created a workflow where the Excel output is controlled by a variable that contains the path and the file name (directory path + file name).
In output I don’t find a working excel file, but an undefined format file (even if i configured the node as an xlsx output).
What can I do to resolve this problem?
Thank you in advance,
cheers!!
Andrea
@ARuggeri91 your path does not have an extension like .xlsx - so it might seem that the file is not valid.
You might want to read about paths and how KNIME handles data:
https://docs.knime.com/latest/analytics_platform_file_handling_guide/index.html#introduction
thank you!! it was a simple mistake! 
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