Is the binary .ipa not .zip on itunes connect?

This is my first time to do Apple applications. I just uploaded the first game on itunes connect which I compressed the file under .zip on my local machine. After uploading to the iTunes Conne开发者_StackOverflow中文版ct, I found out the binary file is .ipa not .zip. I don't know what happened.

Will Apple accept .ipa files? If not, how can I change the file from .ipa to .zip?

.ipa is the correct file format to upload to Itunes connect.

A file with a .ipa file extension is simply a ZIP archive with the extension renamed.