Initially, right-click on the SAJ folder for your company file. Next, select the Properties and then go to the Attributes section of the General tab. Put a checkmarks in the “Read-only and then Hidden boxes. Once done then click “Apply” and a window will appear. Apply changes to this folder, subfolders then select and files followed by Ok. Remove the checkmarks from the two boxes and then hit “Apply” and then “Apply changes to this folder, subfolders. Again, select files then hit Ok. Finally, try to open the data with Sage 50.