Notes about the OPI file extension:
Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries
, unused processes and other unfavourable system settings to identify slowdown issues.
The OPI file type is primarily associated with 'ExpressRecognition Server' by Adlib Software. ExpressRecognition Server is OCR software for faxes, ohotocopies and image conversion into searchable PDF.