In regard to nixda's answer in How can I set Excel to always import all columns of CSV files as Text?, how can I set the workbook name in PS when I am using this script (PowerShell script to open CSVs directly from Windows Explorer) to open a text or csv file? Using the script provided by nixda, the workbook name is book1 (the default).
I can't seem to find a good reference that discusses workbook naming in PowerShell.