Applying to college may be the most stressful thing you've encountered in your life so far.
Depending on the college you're applying to, you may have to submit grade transcripts, test scores, evidence of extracurricular activities, essays, and references.
But one thing that colleges will almost never ask you about is your high school attendance. It's important to note that many high schools do include attendance information as part of your grade transcript.
However, in almost all cases, colleges will not look at your high school attendance record.