hi my Mac had ma Finder virus so I rebooted back to factory settings

I thought I had saved most of my stuff to disc but missed an important Sibelius 7 file which has 9 months of work on it

You may be able to recover it, but most likely not without a lot of effort. Search the web for Mac data recovery software. There are tools for Windows and Linux as well. In the deep, dark past, I have had to personally resort to physically searching disc sectors for the data lost, and then copy that back to an offline drive sector by sector, such as a thumb drive - DO NOT copy anything back to the system drive or you will likely make the situation worse!

did you use Time Machine to recover?

Be a part of the DaniWeb community

We're a friendly, industry-focused community of developers, IT pros, digital marketers, and technology enthusiasts meeting, networking, learning, and sharing knowledge.