How to Change File Permission From Read-Only to Read-Write on a Mac. The Mac OS X Sharing & Permissions settings allow you to change who can view or edit certain files. Changing a file from read ...

A QuickBooks file that's set to read-only will open in QuickBooks but you won't be able to edit it. Often files appear as read-only because of the type of media they are stored on.

My Scientific American column this month concerned a sneaky problem that not many people are paying attention to: file-format rot. That’s when our digital files become unopenable not because ...