First of all EveryStep application is designed for automated website functionality monitoring, not data collection, so accessing local files (reading or writing) is prohibited due to security concerns.

Still, script can be modified within reason using valid C# code.
For example, you can define an array of values to use them later at script, like

string[] PlayerName = {

foreach (string Name in PlayerName)
tab0.TextField (“//INPUT[@ID=\”playername\”]”, “(//INPUT[@TYPE=\”text\”])[1]”).TypeText (Name);

Here’s some more examples of custom code for the reference:

Kind regards.