>> RRI file

RRI file format description

Many people share .rri files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .rri file can be edited, converted or printed with. On this page, we try to provide assistance for handling .rri files.

2 filename extension(s) found in our database.

.rri - RealWorld Raster Image

The RRI graphic files are related to RealWorld Icon Editor. RRI file is a RealWorld Raster Image. RRI is a proprietary raster image format used by RealWorld Software.

RealWorld Icon Editor
Graphic files
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RealWorld Raster Image related extensions:
JustButtons Button Image
Color FBM Image
BlackInk Drawing
RealWorld Layered Image
Fenix Multi Map
Logitech Fotoman Pixtura Photo

.rri - SPEFO Stellar Spectra Analysis Binary RRI Data

The RRI data files are related to SPEFO. RRI file is a SPEFO Stellar Spectra Analysis Binary RRI Data. SPEFO is a small program used for processing stellar spectra at the Astronomical Institute of the Academy of Sciences of the Czech Republic in Ondrejov.

Data files
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SPEFO Stellar Spectra Analysis Binary RRI Data related extensions:
SPEFO Equivalent Widths Data
SPEFO Stellar Spectra Analysis Data
SPEFO Rectified Cleaned Data
SPEFO Differential Spectrum Data
SPEFO Filtered Data
SPEFO Rectified Spectrum Data

Naturally, other applications may also use the .rri file extension. Even harmful programs can create .rri files. Be especially cautious with .rri files coming from an unknown source!

Can't open a .rri file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .rri file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

dri, eri, fri, gri, rdi, rei, rfi, rgi, ri, rir, rr, rrk, rro, rru, rti

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

Reason Module Interface
Fractal Explorer IFS Spot
Real Tracker Instrument
RIR Statistics Exchange Format Data
Petrosys Grid Data
ISO Disk Image with Rock Ridge Extension

Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8, Windows 10, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, Mac OS X, iOS, Android

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If you have useful information about the .rri file format, then write to us!