You can see gridlines in some cells but not others in your Excel worksheet. This creates a confusing, patchy appearance that makes data hard to read. The problem is not broken gridlines but cell formatting that visually overrides them. This article explains the two main causes and provides steps to restore consistent gridlines. Key Takeaways: … Read more
Excel shows an incorrect value when a time calculation exceeds 24 hours. This happens because Excel’s default time format resets after 24 hours. You can display the correct total by using a custom number format. This article explains why the error occurs and how to fix it with the [h]:mm format. Key Takeaways: Fixing Time … Read more
Excel shows a green triangle in the corner of a cell when it detects a potential error. The most common cause is a number stored as text, which can prevent calculations and sorting. This warning helps you spot data entry mistakes or imported data issues. This article explains why these triangles appear and shows you … Read more
Your Excel SUM formula returns zero even when cells contain visible numbers. This happens because the numbers are formatted or stored as text. Text values are ignored by the SUM function, causing a result of zero. This article explains why this occurs and provides step-by-step methods to convert text to numbers and fix the SUM … Read more
You may open an Excel file and find a date displayed as a number like 45321. This happens because Excel stores dates as sequential serial numbers. The program uses this system for date calculations. This article explains why this occurs and provides clear methods to reformat these numbers back into standard date formats. Key Takeaways: … Read more
You need to make weekend and holiday dates stand out in your project schedules or calendars. Excel can apply color formatting to cells based on their date values. This article explains how to use Conditional Formatting to automatically highlight these dates. Key Takeaways: Automatically Highlight Weekends and Holidays Conditional Formatting > New Rule > Use … Read more
Your Excel workbook may become slow and unresponsive. This often happens when conditional formatting rules duplicate and multiply without your knowledge. The feature can create many redundant rules that all run calculations, bogging down performance. This article explains why rules multiply and provides steps to clean them up. You will learn how to restore speed … Read more
You see a cell filled with hash symbols instead of your data. This is a common formatting error in Excel. The problem occurs when a column is too narrow or when a formula results in a negative time or date. This article explains how to widen columns and correct negative time calculations to display your … Read more
You type a formula into an Excel cell, but it displays as plain text instead of calculating a result. This happens when Excel interprets the cell’s content as a text string, not a command to execute. The most common cause is the cell being formatted as Text, which prevents formula evaluation. This article explains how … Read more
You have tried to unhide rows or columns in Excel, but they remain invisible. The standard methods like selecting adjacent cells and choosing Unhide do not work. This happens when rows or columns are set to a height or width of zero, not just hidden. This article explains the cause and provides the steps to … Read more