If you are prompted for a to open this .rar file and the source suggests completing a "survey" to get it, the file is likely a fake or a trojan. Legitimate open-source software like Apache Storm does not require survey completion for access.
: If this is the legitimate data processing framework, the archive contains Java-based core files, release notes, and documentation. Key highlights from this version include a new high-performance core with a leaner threading model and the first streaming engine to break the 1-microsecond latency barrier. Storm 2.0.rar
: This is a scientific rainfall generator used for climate impact studies. The "text" associated with this would be its README or PDF documentation explaining how it simulates rainfall from probability density functions. If you are prompted for a to open this