This font is part of Microsoft Office software package so it cannot be downloaded separately. If you have installed Microsoft Office it should be available.
If you don't have it you can try some similar fonts here:
Light-weight, modern sans-serif font with clear, geometric letterforms.
A clean, modern sans-serif font with a light weight and uniform stroke thickness. The characters are well-spaced with a normal width and a straightforward geometric design, featuring open counters and minimal decorative elements.
User interfaces, corporate branding, web design, technical documents, and digital displays.
Body text, headlines, user interfaces, and branding
Help your fellow font-seekers if you think you can recognize the font. Earn some good karma by doing it :-)
Answer & Help
Yet sometimes the images are very complex, so other users need a bit of help.
If you recognize the font from the samples posted here don't be shy and help a fellow designer.
Thousands of designers (famous or not) use the image font detection system to find a font or similar free fonts from an image.
Although we have the largest database of fonts, the search for a font from an image gets mixed results like the image above.