Your Excel formulas show #REF! errors after you close another workbook. This happens because the formula’s external reference loses its link. The reference points to a cell in a file that is no longer open. This article explains why this error occurs and how to fix it. You will learn how to convert those volatile … Read more
Excel normally prevents formulas that refer to their own cell, known as circular references, because they can cause endless calculation loops. This error stops you from creating intentional, controlled loops for tasks like solving equations or modeling iterative processes. Iterative calculation is a feature that allows these loops to run a set number of times. … Read more
You have an Excel workbook with formulas you need to share, but you don’t want others to see or edit the underlying calculations. The formula bar exposes your work, and unlocked cells can be accidentally changed. Excel’s sheet protection includes a specific setting to hide formulas from view. This article explains how to lock cells, … Read more
Your conditional formatting rules change unexpectedly when you copy them to new cells. This happens because the cell references in your formula are relative by default. When you copy a rule, Excel adjusts these references relative to the new location. This article explains why this shifting occurs and shows you how to lock your references … Read more
Your VLOOKUP formula returns #N/A even though you can see the lookup value in your table. This common error often occurs because of hidden spaces in your data. These spaces can be leading, trailing, or extra spaces between words that are not visible at a glance. This article explains why these spaces break VLOOKUP and … Read more
The #NULL! error appears in Excel when you use an incorrect range operator. This happens most often when a space character is typed between cell references instead of a proper operator like a colon or comma. The error indicates Excel cannot interpret the formula’s intended calculation. This article explains why the error occurs and provides … Read more
You see a #FIELD! error in your Excel worksheet where you expected to see data. This error occurs when a formula references a specific field from a linked data type, but that field cannot be found. Linked data types connect your spreadsheet to an online source, and changes to that source can break your references. … Read more
You open an Excel workbook and see strange prefixes like _xlfn. before function names. This happens when a file uses newer functions but is opened in an older Excel version. The _xlfn. prefix indicates a compatibility error. This article explains why this occurs and how to fix it. Key Takeaways: Fixing the _xlfn. Prefix Error … Read more
Your VLOOKUP formula is returning a zero when the source cell is empty. This happens because Excel treats blank cells as having a value of zero in certain contexts. The result is a spreadsheet filled with zeros that should be visually empty. This behavior is a default calculation rule in Excel. The article explains why … Read more
You may find that your COUNTIF formula returns zero or an error when trying to count cells containing long text strings. This happens because the COUNTIF function has a hidden limitation. The function cannot correctly evaluate criteria that are longer than 255 characters. This article explains this specific technical limit and provides several reliable methods … Read more