|string||The full path and filename of the archive to modify|
|boolean||Sets whether to enable or disable the read-only flag|
|string/integer/array/keyword||The name or index of a file to modify, or array of files (or keyword 'all' for all files)|
|string||Optional: Additional files to modify (arrays and keywords not accepted)|
Enables or disables flagging files as read-only within the given archive created with
xzip_create. Files flagged as read-only cannot be overwritten, deleted, renamed, or moved without first disabling the read-only flag.
If a folder is input, all files inside will be modified.
false to indicate if the operation succeeded or failed.
If multiple files are input, even a single error will return
false even though other files succeeded. In this scenario, use
xzip_report to retrieve a list of failed files.
This will make all files read-only except "file1.txt" and "file3.png".