An rri file extension is related to the SPEFO a Simple, Yet Powerful Program for One-Dimensional Spectra Processing. An rri file stores some kind of stellar spectra analysis data.

There is one other file type using
the RRI file extension!

empty icon.rri - RealWorld Icon Editor picture image file

Detailed description

Software that works with rri file extension

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RRI file - SPEFO Stellar Spectra Analysis data

What is rri file? How to open rri files?

File type specification:

Various data file type icon Various data file type

The rri file extension is associated with SPEFO, a Simple, Yet Powerful Program for One-Dimensional Spectra Processing, developed at the Astronomical Institute of the Academy of Sciences of the Czech Republic in Ondrejov in 1996.

The rri files contain stellar spectra analysis data.

Updated: May 21, 2018

The default software associated to rri file type:

SPEFO picture or screenshot

SPEFO  Microsoft MS-DOS software

Company or developer:
Astronomical Institute of the Academy of Sciences of the Czech Republic

SPEFO is a small, yet powerful program used for processing stellar spectra at the Astronomical Institute of the Academy of Sciences of the Czech Republic in Ondrejov. It was originally written in 1990 by Dr. Jirí Horn for processing spectral plates obtained with the 2m telescope of the Ondrejov observatory and scanned with the local five channel microphotometer. Since then the code had been under constant improvement until the sudden death of the author in December 1994. Currently SPEFO is used mainly for the reduction of data from the Ondrejov Reticon detector (1872 pixels, 12 bit A/D), however it can process data from other instruments too, provided that they are in FITS one-dimensional format.

Help how to open:

Use compatible tools to work with *.rri files.

How to convert:

Probably can be exported to other formats.

List of software applications associated to the .rri file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open rri file, edit rri file, convert rri file, view rri file, play rri file etc. (if exist software for corresponding action in File-Extensions.org's database).

Hint:
Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is ableto perform the specified software action, such as opening, editing or converting rri files.

  • Open rri file
  • Create rri file
  • Others rri file

Software that open rri file - SPEFO Stellar Spectra Analysis data

Programs supporting the exension rri on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about SPEFO for open rri file action.

Microsoft MS-DOS:

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