You need a program like WinRAR , 7-Zip , or The Unarchiver to open it.
This refers to the first book in the series by German author Kate Corell , titled Never Be My Date . Kate Corell Never Be 01 Never Be My Date rar
If you'd like, I can help you find for the book or provide a reading order for the rest of the series. You need a program like WinRAR , 7-Zip