You can use ISERROR to test whether a value or the results of a formula are an error. It will return TRUE if it detects an ...

Daniel Jassy, CFA, is an Investopedia Academy instructor and the founder of SPYderCRusher Research. He contributes to Excel and Algorithmic Trading. David Kindness is a Certified Public Accountant ...

The browser is increasingly becoming the central application on the PC. Today, users not only open their browsers to view websites, but also to work with office applications such as Word and Excel or ...

It can be dangerous to go without sleeping, even for a day. Longer-term sleep deprivation can cause cognitive impairment, hallucinations, and other side effects. The longest recorded time without ...