What you'll have at the end

One combined table where every date parses correctly and every amount sits in the same currency, with the conversion written down.

Before you start

You need

Two exports covering the same reporting period, each with its own date column and its own money column, ready to sit side by side.

Not covered

A live pipeline that refreshes the exchange rate on a schedule, or fixing a currency mix-up that shows up inside one file rather than between two combined ones.

Leans on

Data Cleaning and Validation for Analysts Cheat SheetIts formatting table covers the date and currency parsing this combine needs, and its documentation table is the log format the last step writes into.
SQL Cheat SheetIts date-casting row explains why the same text parses to two different calendar dates depending on which format a tool assumes, and its set-operations row is how the two cleaned files get stacked into one.
Microsoft Excel Cheat SheetIts text-to-number function is the safe way to turn an amount that arrived as text into a real number instead of trusting a cell's own formatting to imply one.

Where to go next

Give a new export a sanity check

when neither export has had its basic structure and plausibility checked yet, before spending time on date and currency conventions

Write a reproducible data cleaning log

for the standing log format the last step here writes a single entry into

Standardize dates and currency across two combined exports

Before you start

Where to go next

Standardize dates and currency across two combined exports

Before you start

Where to go next