There are two main approaches to dealing with error messages in Excel cells:

1. Fixing the Underlying Issue: This is the preferred solution as it addresses the root cause of the error and prevents it from reappearing. Here are some ways to fix errors:

* Correcting Formulas: Check for typos in cell references, incorrect operators (+, -, *, /), or missing parentheses. Ensure the formula is referencing valid cells and data types.
* Entering Valid Data: If the error is due to invalid data entry (e.g., text in a cell requiring a number for a calculation), enter the correct data type.
* Adjusting Cell Formatting: Sometimes, formatting issues like hidden characters or date formats can cause errors. Try changing the cell format to "General" and see if the error disappears.

2. Hiding Error Messages (Not recommended for most cases): While this doesn't fix the error itself, it can hide the visual clutter of error messages. However, it's important to note that hiding errors might mask underlying problems in your spreadsheet. Here's how to hide them:

* Using "Ignore Error" Function: Wrap your formula in the `=IFERROR(formula, "")` function. This displays a blank cell if an error occurs, effectively hiding the error message.
* Changing Error Display in PivotTables: For PivotTables, you can go to the PivotTable Analyze tab, click Options, and then under Display, choose "For error values show" and leave the box blank. This will display blank cells instead of error messages.
* Disabling Background Error Checking: Go to File > Options > Formulas. Under Error Checking, uncheck "Enable background error checking." This will prevent Excel from displaying error triangles in the top corner of cells with errors.

Important Note: Hiding errors is a temporary solution and shouldn't replace fixing the underlying problem. It's crucial to understand the error message and address the cause for accurate and reliable spreadsheets.