Learn how Excel IMPORTCSV refreshes linked CSV data, handles locale formats, and switches to IMPORTTEXT for semicolon delimiters.

Excel's basic formulas work fine for simple calculations, but they quickly become cumbersome when you're dealing with complex data analysis. You end up with nested functions that are hard to read, ...

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If Excel is not using threads efficiently, calculations may take a long time to complete. Learn how to speed up calculating threads in Excel.

Excel spilled range operator (#) allows formulas to automatically adjust to changes in the spilled range size. You need to be using Excel for Microsoft 365 on Windows or Mac to make use of this handy ...

Daniel Jassy, CFA, is an Investopedia Academy instructor and the founder of SPYderCRusher Research. He contributes to Excel and Algorithmic Trading. CAGR measures an investment's average annual growth ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Samantha (Sam) Silberstein, CFP®, CSLP®, EA, ...