You can download REXEL-DISP 1.2 from our software library for free. Our antivirus scan shows that this download is malware free. The program is categorized as Education Tools. The actual developer of the free software is ReLUIS.
From the developer:
REXEL-DISP is a free app that allows you to select suites of natural accelerograms compatible with displacement spectra of NTC '08 and EC8.
You may want to check out more software, such as Trachtenberg Speed Math, SatCalc or MathMatic, which might be related to REXEL-DISP.