How to loop till last row with data?

Hello to my forum friends!

I have a worksheet of data that I need to parse. Got a pretty extensive macro script already running, but I'm still kinda' new to scripting in Excel VBA.

My worksheet looks like this:

=====
known-starting-point - row of data
row of data
row of data
[empty row (cells w/formulas & formatting but no values)]
row of data
row of data
[empty row (cells w/formulas & formatting but no values)]
row of data
[empty row (cells w/formulas & formatting but no values)]
last row of data
=====

I'll just be reading the data, not modifying or deleting. I have no way of knowing ahead of time which rows will be "empty", so I have to determine that, and skip to the next row.

I need to loop through all the rows from the known-starting-point to the last row that contains values. "Empty" rows that I want to skip may contain formulas (no values) and cell formatting. Something like this pseudo-code:

For i = known-starting-row to last-row-of-data Step 1
  If empty row, skip loop to next row
  Do stuff to row with data
Next

Thanks in advance for pointing me in the right direction!

BTM