The supplier names in the original documents are inconsistently capitalised e.g. University College Cork and UNIVERSITY COLLEGE CORK. I have changed them all to uppercase to group the payments under the same supplier.
In the Department of Defence's data, some of the payment amounts are in other currencies. I used the European Central Bank (ECB) API to obtain the average currency conversion rate for each quarter to approximate the euro value as there is no specific payment date given. If you want to see the original amounts and currencies you can see it on the original documents (Department of Defence Purchase Orders).