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When you look at your Open Access Database in Windows, you'll notice that there are two files. One is your regular database file, but the second one has an icon with a lock on it. And if you can see your file extensions, you'll also note that it has an 'L' in the beginning of the file extension. This is your lock file. It's a temporary file that Access creates, because you're saving data on the fly as you work. If you're doing any database management, make sure you always work with the real file not the lock file.
For example, if you move to this file and then try to open it, you'd get an error message. Understanding the ramifications of lock files will help you with your database management.
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