[will4274]

As others have said, you can get version control with Excel by saving the file the SharePoint.

Some huge financial spreadsheets have sanity checks computations. With conditional coloring (turn this cell red if the sanity check fails) these can feel a lot like unit tests. However, these are mostly for business logic - so it's hard to see how a vendor could provide them.

In other words, it's not that excel doesn't have version control and unit tests - it's that the people who wrote excel spreadsheet sheets don't understand version control or unit tests.