Simple help

Sirs, sometimes I received from www4mail files with format *.asp and I wpuld like to know how to poen them. Also I received files with format as shown: sskkskk_pl4.001 and I want to know if I should decode them, hope to hear from you soon,
Alexis
cl21009@jcce.org.cu

Received on Friday, 20 August 1999 14:05:15 UTC