When working with large files in Microsoft Excel, you may encounter an error message stating 'Excel not enough memory to open file.' This can be frustrating and prevent you from accessing your data. However, there are several methods you can try to resolve this issue.

Firstly, it's essential to understand that the 32-bit edition of Excel has limited memory capabilities compared to the 64-bit version. If you're using a 32-bit version of Excel, you may be reaching its memory limitations. To increase your chances of resolving the issue, consider upgrading to a 64-bit version of Microsoft Excel.

Another common reason for this error message is excessive data usage. When working with large files or numerous features, it's easy to consume more memory than available. To alleviate this issue, try reducing the amount of data you're using or closing other applications that may be consuming system resources.

In some cases, the error message 'There isn't enough memory to complete this action' can appear due to a lack of system resources. This is often accompanied by messages such as 'Not enough System Resources to Display Completely' or 'Excel cannot complete this task with available resources.' To overcome this limitation, try choosing less data or closing other applications that may be consuming system resources.

To further troubleshoot the issue, it's crucial to identify the root cause of the problem. The error message itself can be generic and not always provide insight into the real reason for the issue. By understanding Excel's limitations and taking steps to increase memory availability, you'll be better equipped to resolve the 'Excel not enough memory to open file' error.

In conclusion, resolving the 'Excel not enough memory to open file' error requires a combination of understanding Excel's limitations, reducing data usage, and managing system resources. By following these methods, you should be able to overcome this issue and continue working with your Microsoft Excel files.