How to Fix the "Too many different cell formats" Error in Excel?

Excel has set a limit on the number of unique cell formats within a workbook. Excel 2003 allows up to 4000 different cell format combinations, whereas Excel 2007 and later versions allow a maximum of 64000 combinations. When this limit exceeds, you may encounter errors, such as “Too many different cell formats”. It can prevent you from inserting or modifying workbook rows or columns. Sometimes, it prevents you to copy and paste the content within the same or different workbooks.  This error may also occur due to various other reasons.

Possible Causes of “Too many different cell formats” Error in Excel

You can encounter the “Too many different cell formats” error due to the below reasons:

• Formatting is missing in the workbook.
• Size of your Excel file has increased due to excessive use of complex formatting (conditional formatting).
• Workbook contains a large number of merged cells.
• There are multiple built-in or custom cell styles.
• Excel workbook is corrupted.
• The unused styles are unexpectedly copied to new workbooks (when moving or copying a worksheet from one to another).
• Workbooks contain multiple worksheets with different cell formatting. 

Methods to Fix the “Too many different cell formats” Error in Excel

First, check that your Excel application is up-to-date. It helps in preventing duplicate styles in workbooks. If the error persists, then follow the below methods:

Method 1: Simplify the Workbook Formatting

You can face the error in Excel - Too many different cell formats, if the size of your Excel file has increased due to excessive or unnecessary formatting. You can try to simplify the formatting of the affected workbook. While reducing the number of formatting combinations, you can follow the simplifying guidelines, such as using a standard font and applying borders consistently. Follow the below steps to remove unnecessary formatting in your worksheet:

• First, open the affected worksheet.
• Now, use the shortcut key (Ctrl+A) to select all the cells. 
• In the Excel ribbon, navigate to the Home tab and click Clear.



• Then, select the Clear Formats option. 



The above steps will remove all unnecessary formatting from the selected cells, thus reducing the number of cell formats. Besides this, you can try removing the cell patterns (if any) or use cell styles to remove unnecessary formatting in the workbook. 

Method 2: Remove Conditional Formatting

Conditional formatting is also one of the reasons behind the “Too many different cell formats” error. It usually occurs if you have applied multiple rules to various cells or cell ranges within a workbook. Each rule has its own formatting settings. If you’ve applied a large number of conditional formatting to cells, it can increase the number of unique cell formats. You can check and remove the unnecessary conditional formatting. Here are the steps to do this:

• Open the Excel file in which you are getting the error.
• Go to the Home tab and locate Conditional Formatting.



• Select Manage Rules.



• The Conditional Formatting Rules Manager wizard is displayed. You can check the formatting rules and delete the unnecessary rule by clicking on the Delete Rule option.



Method 3: Repair your Excel Workbook

Corruption in the Excel workbook can also cause the “Too many different cell formats” error. You can try the Microsoft inbuilt utility to repair the file. Follow these steps to use this utility:

• Open your Excel application. Go to File > Open.
• Click Browse to choose the affected workbook.
• The Open dialog box will appear. Click on the corrupted file.
• Click the arrow next to the Open button and then select Open and Repair.
• You will see a dialog box with three buttons - Repair, Extract Data, and Cancel.



• Click on the Repair button to recover as much of the data as possible.
• After repair, a message is displayed. Click Close.

If the Open and Repair utility does not work or fails to repair the corrupted Excel file due to any reason, then you can use Stellar Repair for Excel to repair the Excel file. It is a simple-to-use third-party Excel repair tool with an intuitive UI that enables anyone to use it without much effort. The tool can help in fixing the “Too many different cell formats” error. It does so by repairing the Excel (XLS/XLSX) file and recovering all the components, including damaged cell style, without impacting the original formatting. You can download the software’s demo version and install it to check how it works.

Method 4: Save the Excel File to a Binary Workbook (.xlsb) Format

You can also get the “excel too many cell formats” error if the size of the spreadsheet is too large. You can try saving the Excel file in binary (.xlsb) format to reduce the Excel file size. Here’s how to do so:

• In Excel, navigate to File > Save As.
• Select Excel Binary Workbook (*.xlsb) in the Save as type dialog box.



• Click Save.

Some Additional Solutions

Here are some additional methods you can try to fix the issue:

1. Check and Fix the Un-used Style Copy Issue

Many users have reported encountering the “Too many different cell formats” error when moving or copying the content of a workbook from one Excel to another and the unused styles being copied from one workbook to another. Microsoft has released a hotfix package which contains a fix for this issue. You can install this hotfix package (2598143) to resolve the issue.

2. Use Clean Excel Cell Formatting Option

You can check and enable the Excel cell formatting option to fix the “Too many cell formats” issue. This option will help you remove the excess formatting in your workbook. To locate this option, click on the Inquiabove steps willre tab. If you fail to see the Inquire tab, then check if the Inquire option is enabled in the Excel Com Add-ins settings.

3. Clean up Workbooks using Third-Party Tools

The “Too many different cell formats” issue can occur if your workbook contains a large number of unnecessary styles, as mentioned above. You can use third-party tools, such as XLStyles Tool  or Remove Styles Add-in  to clean up workbooks recommended in Microsoft Guide. However, Microsoft takes no guarantee of these tools.

Closure

If you’re getting the “Too many different cell formats" error in Excel, try the methods discussed in this post to resolve it. You can simplify the formatting by following standardized guidelines and clearing all the unnecessary conditional formatting. If the error has occurred due to corruption in Excel file, then you can use Stellar Repair for Excel to repair the Excel file. It is an advanced tool that can repair Excel worksheet and recover all its objects without losing the original formatting.