It sounds like the Excel 2010 file you are trying to save as a web page or single file web page may contain features that are not compatible with those formats. Here are a few suggestions to try:

1. Check for compatibility issues: Click on the "File" tab in Excel 2010 and select "Info". Under "Check for Issues", select "Check Compatibility". This will run a compatibility check and highlight any features that may not be compatible with web page or single file web page formats. You can then remove or modify these features to make the file compatible.
   
2. Save as a different file type: If you are unable to make the file compatible with web page or single file web page formats, you can try saving it as a different file type that is compatible with your website. For example, you can save the file as a PDF or a CSV file, which can be uploaded to your website.
   
3. Use a third-party tool: There are third-party tools available that can convert Excel files to web pages or single file web pages. You can search online for these tools and choose one that meets your needs.

I hope these suggestions help you save your Excel 2010 files in a format that is compatible with your website. Let me know if you have any questions or need further assistance.