Error when creating a Datatable

Hello,

I would like to create a Datatable from an Excelfile but I just get the following error: “Compiler error(s) encountered processing expression “DB”. ‘DB’ is not declared. It may be inaccessible due to its protection level.”

Can anyone tell me what I’m doing wrong?

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you need to decalre that variable before you use it. You can do this in the variables pane or when typing into that attribute filed use ctrl +k and then type the name of the variable

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Thank you very much