This is a complex answer, depending on what "level" of dealership you want. I'll try to make the answers as simple as possible.
If you are referring to the ability to trade physical or digital Fiat currencies, you may have to seek license from the local gov't department/ministry of finance (or equivalent) and then you can proceed in currency exchange. If it is other digital currencies, like LibertyReserve, BitCoin, eGold, etc, you may still need a license.
If you are referring to setting up a retail forex platform for speculators/investors, then you would have to negotiate deals with liquidity providers (banks, institutions, white label, etc) to get a price feed, ability to hedge your risk, etc. You may still need licenses depending on the jurisdiction in which you operate. You also would need to provide methods to accept deposits, withdrawals, etc. And from a technical aspect, you would need to have ability to automate much of this process and troubleshoot when things go wrong.
As with most businesses, you may have to get on the ground and observe or at least talk with someone with prior experience in money exchanging to get a realistic view of the costs and procedures involved.
The Namibian Dollar is the currency of Namibia.The International currency code is NAD.
The national currency of Columbia is the Columbian Peso(International Currency exchange code: COP)
xag is not a country currency code.xag is the international code for 1 Troy Ounce Silver.
Memphis is a city along the Mississippi River in southwest Tennessee.The currency in Memphis is the US dollar.The International currency code is USD.
Milan is in Italy, Europe. They use the Euro.
The currency of Ethiopia is the Ethiopian birr, the international currency code is ETB.The currency of Australia is the Australian dollar, the international currency code is AUD.
XXD100,030 where XXD is the international 3-character currency code.XXD100,030 where XXD is the international 3-character currency code.XXD100,030 where XXD is the international 3-character currency code.XXD100,030 where XXD is the international 3-character currency code.
You could go to a bank or a currency dealer and get them changed to another currency.
American Express. There are currency/ coin dealer for collectors which operate over the internet. If you are buying a large amount of currency or gold, I suggest American Express or an international bank. Almost got scammed about 30 years ago on a gold coin dealer advertising in Money magazine. He would "hold" the gold in his vault for his clients. Thank god I got delivery before the company vaporized.
Any currency dealer - or bank will change currency for you.
The Mauritanian Ouguiya is the currency of Mauritania.The international currency code is MRO.
The Namibian Dollar is the currency of Namibia.The International currency code is NAD.
The Malawian Kwacha is the currency of Malawi.The international currency code is MWK.
The Yemeni Rial is the currency of Yemen.The international currency code is YER.
The Jamaican Dollar is the currency of Jamaica.The international currency code is JMD.
Siberia is part of Russia and its currency is the ruble.The international currency code is RUR.
The official currency in Andaman is the Indian rupee.The international currency code is INR.