Import data

I use Virtual box because I want to train with the postgreSql which I use to my official ODK Aggregate. So, I want to import to my virtual box some data to manage them through pgadmin but I can't import my csv from the official Aggregate and I can't connect my phone to send data via odk collect because I use vm. How can I add some data?
Thank you

I succeed to upload data by taking them from odk instances in my mobile phone and manual upload data in submission admin.

Glad it worked, @bill_tzi! I find the easiest way to move from one Aggregate instance to another is to use Briefcase to pull from one and push to the other.