At the start of the day, our company has 0 transactions. Whenever
a transaction occurs, we will save that transaction data in a single
row of cells.

Therefore, once 5 transactions have been completed, my spreadsheet
will consists of 5 rows of distinct data.

At the end of any given day, we will have completed N transactions
which means that the spreadsheet will contain N rows of distinct
transaction data. My question is: What is a good way to calculate
or determine HOW MANY rows of data have been filled with
transaction data?? (In other words, I'm trying to calculate "N")

Got any ideas?

Thank you!