When you want to import different query’s from the same datasource I would recommend to reuse the datasource connection. Each time you click the import data
a new datasource connection is created.
What i would recommend is using the existing connection to make a new source, click existing connections
Select the datasource you want to connect to and select the data you want to import. This makes maintenance a lot easier.
I am new to power pivot. I tried to import a text file. It show success in the window but I see no data in the pivot table! Please help,
Did it actually say it imported rows in that dialog? I would suggest importing text files with Power Query, the text import is much better there.