Hi @Nadja Schwizer ,
In the Sharepoint out-of-the-box approach, you can only export one Excel table to one SharePoint list. You need to create three different lists for this instead.
As a workaround, You can export From multiple Excel sources to a Sharepoint list using Power Automate.
Since Power Automate is currently not supported in the Q&A forum. Please start a new discussion via the Power Automate Community so that you can get dedicated support on this issue.
Hope this can help you.
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