De acordo com a Microsoft;
You can set two passwords on the file - one to open the file as read-only, and the other to modify. Then you can share the appropriate passwords with the users depending on the access level they should have.
Isso se aplica a: Excel 2016 Excel 2013 Excel 2010 Excel 2007 Excel 2016 para Mac;
- In the Excel file, click File > Save As.
- Click a location, such as Computer or your My Site web page.
- Click a folder, such as Documents or one of the folders on your OneDrive, or click Browse.
- In the Save As dialog box, go to the folder you want to use, then click Tools and then click General Options.
- You can specify one or both passwords here, one to open the file, another to modify the file, depending on your requirements.
- Click Save.