Yes, read-only mode is a setting that prevents users from editing certain files or documents. If you have a read-only file, you will not be able to make any changes to it unless you turn off the read-only mode. Depending on the system you are using, there are several ways to disable read-only mode. For example, in Windows, you can right-click on the read-only file, select "Properties," and uncheck the "Read-only" box under the "Attributes" section. In Google Docs, you can make a copy of the read-only document and edit the copy instead. It's important to note that turning off read-only mode in some cases may require administrative permissions or changing file access settings.