What form is the table in (HTML, CSV, Excel) and what language are you writing in? What have you tried so far?

If you’re familiar with Python, the Pandas library can take data from excel, html tables, etc and turn them into what they call DataFrames… similar to numpy multidim arrays. You can then build a function around the resulting data.

Then searching for the frequency (first column) first , then for a particular hour (2+3rd column, 4+5th column, 6+7th column) and at the same time also for the V, which is meant to be height.