SerGreen
commented
2 years ago This field asks you for the name (and location) of the resulting package, and packed application will always be generated as *.exe file - that's why there's a filter for extension. It doesn't depend on the extension of the source application that is being packed.
Normally you don't want to select an existing *.exe file in this window, because it would overwrite that file then. Usually you want to create a new file instead, so you have to open a directory where you want to save the package, give this file a unique name and click 'Save'. Extension will be appended automatically.
redstoneleo
As for
Select save location for the package (it must be an .exe file).The dialog filter restricts only exe files are selectable, but what actually expects here is a path, so please correct the problem.