How to open OPO files

Did your computer fail to open an OPO file? We explain what OPO files are and recommend software that we know can open or convert your files.

What is an OPO file?

OPO files are EPOC OPL Object module files, which you can read more about below.

The OPO file extension indicates to your device which app can open the file. However, different apps may use the same file extension for different types of data. So an OPO opener may not be able to open all kinds of OPO files. In this case, though, we only know of one specific use.

EPOC OPL Object module

Through our analysis of OPO files, we know that one use of the format is EPOC OPL Object module. We have not yet described in detail what these files contain and what they are used for, but our team is working tiredlessly through thousands of file formats. We'd love hearing from you if you have information about the format.

We have not verified any programs yet that works with this specific format. If you know any, please use the 'Suggest a program' link below. Thanks!