Force header columns and rows in Numbers to stay still and visible while you scroll across the rest of the spreadsheet.

Find the number of rows & columns in Excel Worksheet? It differs from version to version and also depends on the format (XLSX or XLS). Here are the answers!

Odds are that anyone writing a script will know the number of columns in the array that's passed. But is there a way that Powershell can get the number of columns on its own?