The latest version of Saaspose.Cells now offers to secure your workbooks from unauthorized access. You can protect your workbook to prevent others from making changes to the layout of the worksheets in a workbook. Saaspose.Cells allows you to assign password to your workbook to make sure that only authorized access is permitted to edit the structure and layout such as moving, adding or deleting worksheets in a workbook. Similarly, you can unprotect workbook to allow the access for making any changes to the workbook. Once you unprotect your workbook by providing the existing password, the layout and structure of the workbook can be modified by anyone. You can refer to our comprehensive documentation that guides you through the complete features and examples of Saaspose.Cells. All you need to do is download the required SDKs of Saaspose.Cells and enhance the productivity of your applications in the cloud.You can protect and unprotect your workbooks easily using the feature rich Saaspose.Cells REST API. Following is list of Saaspose.Cells REST examples that can be used for protect and unprotect requirements of your spreadsheets.