This tutorial demonstrates how to hide column and row headings in Excel.
Hide Column and Row Headings
In Excel, you can hide the numbers at the left of each row and the letters at the top of each column. These numbers and letters are column and row headings. To achieve this, in the Ribbon, go to the View tab and uncheck Headings.
As a result, headings are now hidden.
Another way to hide column and row headings is to change your Options.
1. In the Ribbon, go to File > Options.
2. In the Excel Options window, go to the Advanced tab, uncheck Show row and column headers, and click OK.
The result is the same as in the section above: Column and row headings are hidden.
Unfortunately, you can’t do this in Google Sheets.