Hello. I found a code in the Wolfram language on the Internet and I am trying to figure it out. Please help me understand the purpose of each command digit on the second line. I tried to look at Part and Span in the help, but I still didn't get it. Thanks.
data = Import["dest\\Test.xlsx", "Data"];
x = data[[1, 2 ;; - 2, 2 ;; - 2]];
