If you use Excel 40 hours a week (and those are the weeks you are on vacation), welcome to the MrExcel channel. Home to 2,400 ...

Learn how to sum data in Excel using IF conditions with SUMIF or SUMIFS. Perfect for accurate reporting and data analysis.

Congress just gave the world its best look yet at the ads purchased on Facebook by Russia-connected accounts during the contentious 2016 election season. Sen. Richard Burr provided the first images ...

The Justice Department moved an inquiry that appeared initially focused on the former C.I.A. director John O. Brennan to South Florida and is beginning to recruit line prosecutors. By Glenn Thrush, ...

The National Academies of Sciences, Engineering, and Medicine are private, nonprofit institutions that provide expert advice on some of the most pressing challenges facing the nation and world. Our ...