Weird encoding in executable files in ios apps

I'm trying to see how does certain ios apps executable files look like, what I do is export the app files to my computer using iexplorer, I then took a look at the info.plist to see the executable files, after that I opened them with my notepad to use the UTF-8 Encoding, but here how does things look like in both files-in the opening of both of the files I see english words that are expressing directories:

Sample of file 1:

‹"Ò.(?!ÑNÓU£C°îXjøe”Ú5O•½°{^ÿÝŒEÌrôðæ$@[3,ÔÜ£æ»8I˜hGw!*aHÒQ•tœl²þ„™AÍçßÍ憴³)è:cÌ7H5æß-eFç¯î&Ø\n,$Ë$y»¥ÁB^6ÙP; i(q,AÅ 
âðð·'©=Ÿa"v!PBÛÚ"¤¬‹Wj·;ËsÌŽÚâZüŠ–ÇüÉ;ÜA´sI«¸Üæ¿÷ ›‚‰.êøLž

Sample of file 2:

ßꪧgö«húDªÝn¡±CÅÁ¹ â=؉ˆ4|®b¡  JeW-ɯðó<n!¿mªJŒS£šŠ¿)ÙP"㢜ÛôRW­³tÖÙiŠ/7’¬(.æIó£™\NÒèË0¾jDçéM«Q/rªa`NÌhó¾ByUkézAµI—Ê6èøÁœ.gÄkß±ŠÊbN¬9ó9XˆU_ô°Š Y—9cÍq²Xi“¢•¢^+3بñTÒ¦”¦Ø+PEOÖ–lci5^?÷¤(131dv°t]†™6>¦xgýgeéÀXœH7ßJÉ" 3‡rÜ6ÒI_   ƒr cdÅá¸|íð¼l;Töl±”›MÛ˜±o/ôÇô#¬RS;Y¥!ÜzGò“vî©6ØR¡‚>Ì0m5
ŸzrPÐiDMÊ|Þ·9âëYß,p؃‹£x—.àN5îüÝrjœG]Æ·

Ironically in the second file I can see a huge block of english words absolutely fine, but I dont get it why I don't see the whole file very good? I have also tried to open the files in an objective-c compiler after I have made them .m but that again was useless?