Translations:Macro SpreadsheetTools/3/it

Sul forum di FreeCAD si trovano ulteriori informazioni in: http://forum.freecadweb.org/ e in particolare in https://forum.freecadweb.org/viewtopic.php?f=22&t=20508&hilit=spreadsheet#p158443 and on Github on https://github.com/HoWilgh/FCSpreadsheetTools/blob/master/README.md.