How to edit an apk file ? [HD]

GAME MODIFIED IN THIS VIDEO : REAL CRICKET 14 .\r
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SOFTWARES REQUIRED :\r
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1-NOTEPAD++ : Download Link : \r
2-APK SIGNER : \r
3-WINRAR/WINZIP .\r
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PROCESS :\r
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EXTRACT THE APK .\r
REPLACE THE FILES PRESENT IN THE APK WITH THE ONES YOU NEED .\r
SIGN THE APK USING THE APK SIGNER .\r
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NOTE : IF YOU WANT TO REPLACE THE AUDIO FILES , USESTORECOMPRESSION LEVEL WHILE ADDING THE AUDIO FILES USING WINRAR .