What will happen if I uninstall Microsoft Office Enterprise 2007?

You can uninstall the 2007 Microsoft Office system by using the 'Fix it' tool.

Keep in mind, uninstalling Office 2007 will not affect or delete your files. After removing Office 2007, you can proceed to install Office 2019 and you will be able to open your files just fine in the newer versions of Word, Excel and PowerPoint.

Click Start > Control Panel. Click Programs > Programs and Features. Right-click the Office application you want to remove, and then click Uninstall.

If it's just a trial version, you can safely uninstall it.