While searching for an answer to the question - How to open the RAI file? - you probably found websites, which offer software that was able to open any file extension. Do not be fooled, there is no one program that will allow you to work with any file extension, including the RAI file. Each program contains a different type of data and you need specialized software to properly work with the RAI file. Here is a list of programs that are designed to work with the RAI file - remember, these applications are able to open at most a few file extensions, they are designed to work with a specific data type.
| File type | SPEFO |
| Developer | Astronomical Institute of the Academy of Sciences of the Czech Republic |
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If after installing the program from a list, you still cannot open a file with the RAI extension, the reason may be that the file is damaged. The solution may be to find a new copy of the RAI file you want to open
In this case, the easiest way is to use the tool built into the operating system for association of the RAI file with applications to support it. Double click on the file you cannot open - the operating system will display a list of programs that are likely to work with your RAI file. Choose one of them, or select the location on a disk where you installed one of the applications from our list. Windows should then open the RAI file using the program installed earlier.
Entries containing links of the RAI file extensions with applications is located in the HKEY_CLASSES_ROOT. If you do not know how to get to the Windows Registry, or how to make changes in it, ask a specialist for help. Lack of knowledge on the subject may cause irreversible changes on your computer.
There may be a situation when a computer virus passes itself off as the RAI file. In this case, such a file will definitely not be opened. Download a good antivirus program and scan the RAI file mentioned. If the antivirus application detects malicious data, it may signify that the RAI file is infected.
| RAMD | Repeat After Me Document |
| RAM | Real Audio Metafile |
| RAST | Sun Raster Bitmap Image |
| RA3SKIRMISH | Command & Conquer: Red Alert 3 Skirmish Map |
| RA3AUTOSAVE | Command & Conquer Red Alert 3 Save Game |
| RAY | Rayshade Picture Image Format |
| RASKINLICENSE | Raskin For Mac License Format |
| RADIUMKEY2 | Radium Registration Format |
| RAI | SPEFO |
| RADIUS | Ruby-Radius Scipt |
