When saving a rendered picture from Poser 7, I sometimes find that Poser attaches the default file extension, i.e. .PNG, even when a non-default filetype is chosen.   Out of habit, I nearly always save a picture as a TIFF.   If then I want to look at the saved file in Photoshop (or whatever), there is no TIFF to be found - only a PNG.   Photoshop can display the thumbnail, but can't open the file.   The reason is that the saved file has the format of a TIFF, as requested, but the extension of a PNG.   If I change the extension to .tif, Photoshop can open the file.   I have seen this a number of times, but I haven't found a way to reproduce it to order.    Has anyone else seen this?