To safeguard her spreadsheet from unauthorized access and modifications, Varsha can utilize the password protection functionality.
Standard spreadsheet applications, such as Microsoft Excel, offer the capability to establish a password for file access.
Furthermore, a separate password can be implemented to limit editing privileges, enabling viewing while preventing alterations.
This measure guarantees that individuals without authorization cannot view or change her data.
Consequently, employing a password is the most effective method for securing her file.