If you're a TextSpresso 1.3 user upgrading to 1.3.1, you need to import the filters in the Updated Filters file in the Extras! folder. To do this follow the instructions below.
1) Launch TextSpresso.
2) Select the Import Filters... command from the Edit Filters submenu of the Filters menu. (Filters>>Edit Filters>>Import Filters...)
3) Using the open file dialog which appeared, navigate to and open the file Updated Filters in the Extras! folder.
4) A filter selector dialog will appear. Select all of the filters in the dialog. Then click the Replace button, not the Import button.