About: QuickBooks is the most extensively used accounting software, which is used by millions of business people. This accounting tool is the best-suited tool for accounting tasks. I am also a QuickBooks user and using it for managing the accounting tasks in the proper ways. While your QuickBooks will not open the company file, you may experience QuickBooks not opening error. Several QuickBooks users face this accounting problem with QuickBooks not opening or crashing. This case is also happening with me, so there are many reasons for this error code. I don’t have solutions for QuickBooks won’t open problem. So please anyone can suggest me easy ways to fix this accounting problem.