If you want to create a new file choose the command File->New. A dialog window will display where you can select the type of file you want to create. After pressing the (OK) button the file is created and its empty window displayed. The file is created as temporary in the temporary folder. If you want to keep it, choose the command File->Save as and save it under a different name. If you try to close the unsaved temporary file, the program will notify you that the file wasn't saved yet, and it will ask you if you want to save it. If you do not save the file, it will be automatically deleted from the disc.