Quickbooks desktop 2018 has reached the expiration date and will no longer open company files

QuickBooks Desktop will be locked out if not registered within a period of time,HAMZA420.

If your license is already registered, a registration file might have been damaged that's causing the issue. You can delete the said file to unlock and remove the error. Then, register the license afterward. Let me share these articles as your guide:

• Resolve installation errors by deleting damaged file
• Activate QuickBooks Desktop for Windows

You can also call our phone support in case you need more help with your license and registration. Here's how to contact phone support: 

• Go to the QuickBooks' Help menu and select QuickBooks Help.
• Click Contact Us in the bottom section of the page.
• Inform them that your having errors with your license and click Continue.
• Click Start messaging or Get a callback. 

Just in case you can't go to the Help menu at all, follow these steps to get their contact details:

1. Go to this link: https://help.quickbooks.intuit.com/en_CA/contact.
2. Select QuickBooks Desktop.
3. Click Manage subscription, then click Manage your account.
4. Click Get Phone Number.

Visit us again if you need more help.

I need a call back, please.

(Phone number removed)

Lic # *****

@Benita1 

Beware to share your data publicly. No one will call you but scammers. Navigate to your Help menu and contact Support from there as mentioned by JenoP.