If someone recreates the same file by hand every cycle, that is the first thing worth automating. Repetitive, well defined, and costing real hours.
A recurring export rarely appears on anyone's list of problems, because each run only takes an afternoon. Multiply it by twelve, add the corrections, the version sent before the late payouts arrived, and the time spent working out which copy is current, and it becomes one of the more expensive habits in the business. It also breaks quietly whenever a source system changes a column.
We rebuild that export as something generated on demand or on a schedule, from the live source rather than from last month's copy. Column changes upstream get handled once, in one place, instead of silently corrupting a spreadsheet nobody checks. The file that comes out matches the one you send now, so nothing downstream has to be renegotiated with whoever receives it.
One operator, 10 properties, 4 countries, and 11 hours of manual entry gone every month.
Month-end close dropped from days to roughly 40 minutes, four weeks after we started.
This is usually the cheapest fix to scope, because the requirements already exist in the file you send today.