Artur made some suggestions for file extensions to be used / recommended for our formats / representations: (with comments by Jochen)
.ortOpen Reflectometry Text
.orpOpen Reflectometry Pragmatic
JS: pragmatic is associated with the content rather than with the representation.
.ordOpen Reflectometry Data
JS: binary file also contains data
.oraOpen Reflectometry ASCII
(Latin: pray, Italian: hour)
.orbOpen Reflectometry Binary
.orsOpen Reflectometry Strict
JS: strict is associated with the content rather than with the representation.
.ornOpen Reflectometry NeXus
.orhOpen Reflectometry HDF
.ormOpen Reflectometry Model
.orlOpen Reflectometry Layers
JS: model contains more than layers
.orsOpen Reflectometry Structure
see also binary files
.ordOpen Reflectometry Description
see also ASCII files
Attention: Several extensions are suggested in various categories!