How can I insert several .csv files with different column structures as individual tables into one Excel file?

[Nes]

Dear Community
Thank you very much for your answers!
Yes, that’s right. My information was not very precise.
I’ve tried your solutions.

I have over 100 csv files that I would like to have as tables in an Excel folder. Ideally shortened to maximum character length and without the .csv file extension at the end.

I am a knime newbie and have tried/ experimented with the following flows:

list files/ folders → table row to variable loo start → csv reader → string manipulation → excel writer → variable loop end

list files/ folders → string manipulation → table row to variable loop start → csv reader → excel writer → variable loop end

From the community: [Reading data from Different CSv files and converting into excel format - #6 by takbb]

Thank you very much.