Sometimes you might receive an error while trying to change and save the contents of a Read-only text file and you never realize it until the text editor itself ...

A file access classification that determines how a file can be viewed or whether it can be edited. File attributes are maintained in the file system's directories, and typical attributes are Read-Only ...

Just remember to set attributes to a comma-separated list. If you aren't sure what the right values are, you can ask PowerShell: However some of these, like Compressed, are only set after something ...