This is an EMV parser that when you give it a string with EMV data it will show its meaning like the following example:
6F(File Control Information(FCI) Template)
1A
84(Dedicated File(DF) Name)
0E -len
315041592E5359532E4444463031 - value(1PAY.SYS.DDF01 en hexa)
A5(File Control information(FCI) Propietary template)
08-len
88(Short File Identifier(SFI))
01- len
02 -value
5F2D(language preference)
02-len
656E-value