Sure, changing the author's name in an Excel spreadsheet is a straightforward process. Here's how you can do it:

1. Open the Excel spreadsheet in question.
2. Click on the "File" tab in the top left corner of the screen.
3. Click on "Info" in the left-hand menu.
4. Look for the "Properties" section on the right-hand side of the screen.
5. Click on the "Properties" dropdown menu and select "Advanced Properties."
6. In the "Summary" tab, you should see an option to change the "Author" field.
7. Simply type in your name or the name you want to appear as the author in the "Author" field.
8. Click "OK" to save the changes.

That's it! The author's name should now be updated to the name you entered. It's worth noting that changing the author's name in an Excel spreadsheet won't affect the content of the document in any way. It's simply a way to update the metadata associated with the file.