Automating Invoice Processing with UiPath Action Center

Can I extract bill details to excel. I have multiple bills in one pdf I want to extract that from pdf to excel.

How can I get the code source of this example ? and which lisence I need to use ?

How to create a process ?

How to actually create this flow

Can I get a video for creating workflow using uipath action centre?

Where can we get demo source code for human in loop?