An spi file extension is related to the Scanned Graphics file format developed by Philips and Siemens.
There is one other file type using
the SPI file extension!
.spi - ShadowProtect incremental disk change backup
SPI file extension - Scanned Graphics file format
What is spi file? How to open spi files?
File type specification:
The spi files are used by some digital scanners developed by Siemens and Philips companies. Seems to be very rare used or obsolete file format without support from the developers.
This spi file type entry was marked as obsolete and no longer supported file format.
This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.