PSPIMAGE is legacy and read-only here
PSPIMAGE is an older raster format. It can usually be opened and converted from, but it's long obsolete, so there's no modern encoder to create new PSPIMAGE files.
Looking for PSD to PSPIMAGE? Here's why PSPIMAGE isn't an output option — and the modern formats to use.
We don't create PSPIMAGE files — it's a legacy format that's effectively read-only. Here's what to convert to instead.
PSPIMAGE is an older raster format. It can usually be opened and converted from, but it's long obsolete, so there's no modern encoder to create new PSPIMAGE files.
For a file that opens everywhere, convert your PSD to PNG, JPG or TIFF instead.
PSD is Photoshop’s native format, preserving layers, masks and effects for non-destructive editing.
How to open PSD opens in Photoshop, Affinity Photo, GIMP and Photopea.
Full PSD format guide