title: In Excel, highlight row and column if cells value is X
body: <p>I want to apply a global rule to an <code>excel</code> sheet such that if a specific cell's value is, say, <code>-1</code>, then the corresponding row and column will be highlighted.</p>
  
  <p>The reason behind: Each row is automatically filled (using queries from a data base). Since each line is MUCH longer than the screen's width, I want both row and column to be highlighted in case a value in one of the cells is <code>-1</code>. I consider this value globally forbidden.</p>