How do I eliminate QuickBooks won't open company file?

QuickBooks is the best accounting software that helps business users to use it for maintaining the accounting tasks. It is powerful financial software that is keeping a record of accounting entries. When I try to open my company file, my QuickBooks won’t open company file. There may be many reasons due to which I am not able to open company file. It has become an annoying issue for me, so I look for expert’s help. There can be many unexpected reasons that can stop me to open my company file in QuickBooks. Really, I am looking for the permanent ways for solving QuickBooks won't open company file. Could anyone assist me to solve this error as soon as possible?