PSD (Photoshop Document) is a very common format. Many graphics viewers including the free Irfanview can read.
You can also save your picture as tiff, jpg, or png.
What's wrong is the font size and color you used to write this post. Please...
If you save an image edited in PS as a JPEG or TIFF file, anyone will be able to open it without having PS installed.
Thank you so much!! You are very kind to have replied and to have replied so quickly!!!