A QuickBooks Wont Open Company File for a number of reasons. It could have grown to be damaged the past time it had been being used, or it might have been damaged because of some kind of corruption on your hard disk in which the file is stored. Other common factors include difficulties with reports or transaction templates that have been left open within the file the final time it was closed (especially when you yourself have the preference selected to ësave desktop upon exití. Other reasons include utilising the wrong version of QuickBooks, or issues with the area for the file such as for example access permissions, problems with the file name and file extension, or a conflicting *QBW.tlg file are additional reasoned explanations why you do not be able to open the file. You may possibly experience various error messages including the -6000 series (there are lots of), or even the H# series, C= errors (such as C=343 or C=422, although they are rare), various Unrecoverable Errors (I wrote a write-up relating to this the other day) and many more. Preliminary Step: The preliminary step is always to always make sure that the problem is really with ëyour Company fileí and not QuickBooks itself. One great way to do it is to press and support the Control (Ctrl) key while double clicking the actual QuickBooks application icon (not your QuickBooks file icon). In the event that program still does not open while holding down the Ctrl key then chances are you have a QuickBooks application issue, and not a ëfile issueí. If QuickBooks does open, then try opening a ësample companyí file, of course the sample company opens then it’s likely that the problem is with ëyour own Company fileí. So letís assume for purposes of this article that you have determined that the difficulty needs to be with your Company file. A few days back I also wrote an article about QuickBooks not letting you log-in, because the QBW.tlg file or perhaps the database server believed that you were logged-in, thus I wonít get into those things now, apart from because the QBW.tlg file may relate genuinely to other problems. Step one: step 1 that I recommend is the fact that you come back to the ëNo Company Opení screen, if you have that sample file open, then choose the option to close/log-off through the File Menu. Step 2: Through the ëNo Company Opení screen, the next step is to select the Utilities sub-menu from the File Menu, if the solution to ëStop Hosting Multi-user Accessí can be acquired, you need to select it. What we are making an effort to accomplish let me reveal ëturn offí the hosting function either on the pc you might be using, or on any kind of computer on your own network that is acting once the ëhostí. So you may have to go through exactly the same steps I outlined a moment ago regarding use of the Ctrl key to open up QuickBooks without any business file being opened, then proceed to shut-down hosting on any/every computer you see it running. (Note: Hosting should not be fired up much more than one computer on your network.) Step 3: the next step is to use the Windows browse feature to locate the directory (folder) where your organization file is stored. At this point you like to make a Windows ëcopyí of the CompanyFile.QBW and CompanyFile.QBW.tlg file and safely store them away in a directory called ëSafety-1í you create (I almost always suggest in the ëdesktopí.) Now I want you to repeat this process to generate another copy in one more directory called ëSafety-2í and copy the 2 files compared to that directory as well. You can always ëdeleteí these copies if you donít need them later (one copy is a true 'safety' copy, and the other may be employed for 'testing purposes'.)