Set CSV as Default File for Importing Points

[richierich1321]

When I run the 'readpt' command, click 'Import Text/ASCII Files', and navigate to the folder that has the csv I'd like to import the points from, the window always has a .txt file as the default. How can I change the default so that a .csv file is the default file to look for? It's so repetitive to always click the drop down arrow in the 'Files of type' field to change it from .txt to .csv.