LEGO NXT brick audio data
File type: Audio and sound file
An rso file extension is used by LEGO MINDSTORMS NXT for audio data used by an NXT robot brick.
An rso file contains a short audio alert or sound effect for the robot.
Found 2 different file type records with the same rso filename suffix.
File type category:
Audio and sound file
Date updated: October 25, 2026
The rso file extension is associated with LEGO MINDSTORMS NXT, LEGO software for programming LEGO MINDSTORMS NXT robots. The software uses these files as part of the robot's sound resources.
RSO files are intended for use by the NXT brick and its programming environment rather than as general-purpose audio files. The format is tied to the legacy LEGO MINDSTORMS NXT system and is not commonly used by current audio software.
Use LEGO MINDSTORMS NXT on Microsoft Windows to work with an rso file. The software can use the file as a sound resource for an NXT robot.
Most general-purpose media players cannot open an rso file as a normal audio recording.
Apps designed for playing rso files:
Microsoft Windows
Software apps that create rso files:
Microsoft Windows
Software applications that handle other tasks involving rso files:
Microsoft Windows
File type category:
Various data file
Date updated: October 25, 2026
The rso file extension is used by ARIS, business reporting software for Microsoft Windows developed by Software AG.
An rso file contains a report script object. The script is used within ARIS to generate reports from data and models managed by the software.
Open an rso file in ARIS on Microsoft Windows. Use ARIS's report or script management functions to access the report script object.
To obtain another format from an rso file, open the object in ARIS, run the report script, and export or save the resulting report using ARIS's output options.
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