I am trying to add the file extension after the user selects the file name. Specifically, when the user clicks a button I would like to open a windows explorer where I enter the desired file name for my spreadsheet. After that I would like to add ".csv" programmatically. I can't seem to figure out how to do this.
I tried to convert the path to a string, add the ".csv" and the turn the string back to a path. When I add this before the "Write delimited spreadsheet" the program crashes (img1). When I add if after the program opens the windows dialog properly but ignores the ".csv" (img2).
I am new to this, any help is much appreciated.
