This process was sometimes called linkage editing and the output known as a load module. A compiler works with what are sometimes called 3GL and higher-level languages. An assembler works on programs written using a processor's assembler language.
In general, however, when between vowels (as in exactamente) the Spanish x is pronounced like the English ks sound but softer or less explosive. When it comes before another consonant (as in expediciÃ³n), it has the s sound in some regions/countries but the soft ks sound in others.
my name is ***** ***** I will be happy to assist you. In English the pronunciation would sound like Shwenduh. The X is pronounced in English as the English SH sound roughly. Try listening to the sound here: https://translate.google.com/#auto/zh-TW/Xuande. Click the little speaker icon to hear it.