QuickBooks software is one of the most popular accounting software in the World. But, when it does not work properly and showing any error, it's seems like so difficult to deal with it. The reason behind errors in QuickBooks software are networking issues, corrupted data files, running an old edition of the software, improper installation of the software, firewall issues, or anymore. From my point of view, every QuickBooks user should always have a daily backup of a QuickBooks data file. So that, if your file becomes corrupted or showing any error while trying to open it, then you could restore it from the previous day's backup. When you open QuickBooks company file, you will see this error message: “QuickBooks is attempting to open this Company file. Before you can open the company file from your computer you must first open the company file on the computer where the company file is located. (-6177, 0)”