There may be good reasons to choose commercial software over Excel (and indeed vice versa) but “prone to error” and “time consuming” cannot be any of them.
Why are you more likely to key the wrong figure into Excel than you are into the commercial software?
If you were to key in the worng figure spotting it within a spreadsheet listing is far easier than wading through some often meaningless report producd by the software. Correcting it within Excel would be simply changing the figure.
As you know the checks and balances come through reconciliation which is down to the user regardless of chosen application.
Just my view of course.