Type Foundry: MicrosoftThe Calibri™ Font Family is part of the modern sans serif family with subtle roundings on stems and corners. The Calibri font was originally designed by Luc(as) de Groot. Calibri's many curves and the new rasteriser team up in larger sizes to reveal a warm and soft character. The Calibri fonts features real italics, small caps, and multiple numeral sets. The Calibri Font Family's proportions allow high impact in tightly set lines of big and small text alike. The Calibri Font Family is featured in the Microsoft ClearType Font Collection, a set of fonts developed to take advantage of ClearType to improve the reading experience in Microsoft Windows Vista and Microsoft Office 2007. Calibri fonts are available in both Opentype (.otf) and TrueType (.ttf) font formats.