fix file extention detection (#155)
fix file extention detection (#155)


filesender/filesender,jornane/filesender,filesender/filesender,jornane/filesender,filesender/filesender,jornane/filesender,filesender/filesender,Veredior/filesender,jornane/filesender,Veredior/filesender,Veredior/filesender,Veredior/filesender,Veredior/filesender,filesender/filesender