How to rename a Google Docs Spreadsheet?
Google Docs Spreadsheet file can be renamed with the following steps,
Step 1: There are two options to choose rename option
Option 1: Click on the Untitled spreadsheet to rename a file.
Option 2: Click File → Rename
Step 2: "Rename document" dialog box appears. Here type the new document name and click OK.
File will be renamed as given in the image below.