ExcelSmartTools was developed during the last months, and adds news features or upgrades existing features to Microsoft Excel. Because actual spreadsheets software, namely Microsoft Excel, are very powerful and complete software, it was hard to find significant areas of improvement. Thanks to many source of ideas, it was possible to design and develop an Add-In that improves and reduces very time consuming operations, and is now part of my Microsoft Excel spreadsheet. ExcelSmartTools main feature is Spelling Numbers, a tool that spells numbers in four different languages: English, French, Spanish and Portuguese.