Purchase Invoices in different Currencies

Good Day! I have a problem we are purchasing spare parts in different currencies and we are purchasing in bulk. Every invoice is composed by few pages & in every page there are hundreds of items with releated unit price in EURO basically. To record the invoice and the single pieces for the inventory i need to convert items in excel sheet starting from EURO basically to AED. This out of the software procedure is time consuming. And i concider it useless. Do you have any specific package or solution in your software? Kindly let me know how can i put inventory without converting them in excel sheet. Thank you.

For a stsrt read through this post - where there is almost a worked example