View source for Psion OPO/OPA

{{FormatInfo
|formattype=electronic
|subcat=Executables
|extensions={{ext|opo}}, {{ext|opa}}
}}
'''OPO''' (OPL Object, Psion OPL Output) is an executable format used on Psion PDA devices. OPO files are usually created by compiling programs written in the [[OPL]] programming language.

There is an '''OPA''' variant format, which can also contain embedded resource files.

See also [[Psion IMG]].

== Identification ==
OPO files begin with the ASCII signature "<code>OPLObjectFile**</code>".

== Specifications ==
* http://www.davros.org/psion/psionics/opo.fmt

== Software ==
* http://www.project-atlantis.co.uk/download.html → [http://www.project-atlantis.co.uk/zips/oplinfo.zip OPL Info] (OPO executable that displays information about OPO executables)

== Sample files ==
* http://cd.textfiles.com/pdasoftware/PSION/ ...

[[Category:Personal Digital Assistant formats]]