Dear Adobe team, you must see there is a growing demand for big file use in Photoshop. It is nice, that we have the possibility to save as PSB, but most other tools which i have to work with do not support PSB nor PSD. While Photoshop can read, open and edit BigTiff files, it is unable to save them. We are almost at the and of 2020, please make this a possibility. There are tools out there, that can do math operations Photoshop can not. Aswell as there is Photoshop, that can do things the other tools are unable to. Please connect this by allowing to save with the BigTiff file format. It would certainly expand the possibilities of what we can do with your software.