A .rar file is a compressed archive. If you have downloaded this file, it likely contains: Usually in .mp3 or .wav format.
Based on the title "Da El Sí" (Spanish for "Says I Do" or "Says Yes"), this is most likely a Spanish-language version or a remix of a song by the Italian dance artist Lady Violet, or a track from a compilation album where she is featured as the 8th item. Who is Lady Violet? 08 - Lady Violet Da El SГ.rar
She adopted a sophisticated, "aristocratic" image for her stage performances, often appearing in elegant attire to match the "Lady" title. Context of "Da El Sí" "aristocratic" image for her stage performances