Student or Learner
I know that "I will tell it to you" is an idiomatic way to say but what about "I will tell it you." Is it acceptable?
I'm not a teacher of English, but I have spoken it for (almost) all of my life....
Writing properly is encouraged here, as you already know. That includes (among other things) correct capitalization and punctuation.
My suggestion: if it bothers you to be corrected, please ignore such posts in the future. Answering as you did is, in my opinion, inelegant.
Please be aware that I'm neither a native English speaker nor a teacher.
I am not a teacher.
'I will tell it you' and 'I will give it you' and other similar constructions are not standard English, but they do appear in certain local variants.
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.