Copy folder with Excel files with columns together into a new Excel file

Hi @Matthias_Kuntz

Welcome to Community!!

Can you try the below code to write multiple excels to single excel in different sheets

Input:

Output:

Sequence2.xaml (17.1 KB)

or

If you want to write multiple excel into single excel in single sheet then try below code

Merging Excels.xaml (18.9 KB)

Cheers!!