If you cannot open an Excel file and see Excel cannot open the file because the file format or extension is not valid error, see this post.

How to Make a Drop-Down List to Choose a Date in Excel. Microsoft Excel lets you create simple forms that your users can enter data. To save them time and make sure you get the information you ...

Learn how to create a drop-down list in Excel without or with color using conditional formatting and data validation rules.

Google Chrome has overtaken other browsers in terms of market share. But which browser is ahead when it comes to practical use and protection against hackers and privacy?

Computer science articles from across Nature Portfolio Computer science is the study and development of the protocols required for automated processing and manipulation of data. This includes, for ...

Texas Hurricane and Tropical Storm Tracker Keep an eye on tropical storms and hurricanes as they approach the Lone Star State. Storms we are tracking now: ...