Toad 9.7.2 out of memory when save

I am using Toad 9.7.2 connecting to an Oracle database. When trying to save the results into text, I am getting an out of memory error. The Toad is set to use a specific character set that I need due to certain signage being use. Does any one know how I can increase the memory in Toad? I had already unchecked the ‘display all exported results in grid’. Any help will be greatly appreciated.