Hi @v-bacao-msft
thanks for your feedback.
Most of the metadata are custom columns.
The process is some kind of cost expense workflow. The user will fill in the cost in a Powerapp and those information will be then uploaded to SharePoint.
Then for each cost process instance/workflow the information(cost item, date, cots etc) needs to be imported to an Excel file.
If you have a static Excel file it seems no big deal, because you can easily map this from SharePoint to the existing Excel file but in my case the Excel should be created during the process.