I cannot save files..All files open as read only

Message says you don’t have permission to save in this location. Contact administrator to obtain permission.
I have no administor.

All files open as read only.

Everything worked fine until today. Downloaded 7.0 and no change. Still can’t save files and all open read only.
I have the Libre data files backed up on a thumb drive. I can open files from and save them to the thumb drive with no problem.

What is your operating system? It seems you have a problem with file permissions.

Windows 10 You are correct. l changed permissions on the files and everything seem to work OK. I have no idea why or how the permissions changed. Thanks.

Please see my answer to question 267727 Cheers, Al