Files with opv file extension might be found as XML based OpenPanorama visit files. No further info could be found.
OPV file extension - OpenPanorama visit data
What is opv file? How to open opv files?
File type specification:
The opv file extension seems to be used for a OpenPanorama visit data format.
Looks like it is a variant of XML format, used to view very large pictures.
Seems to be obsolete format.
This opv 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.