Tips to open QLB file

Can't open the QLB file? You are not the only one. Thousands of users face similar problems every day. Below you will find tips on how to open QLB files as well as a list of programs that support QLB files.

QLB file extension

File Name Microsoft QuickBasic Library
File Developer Microsoft Corporation
File Category Misc Files

The QLB file is supported on 1 operating systems. Depending on your operating system, you may need different software to handle the QLB files. Below is a summary of the number of programs that support and open the QLB file on each system platform.

Operating systems
  • 1
  • 0
  • 0
  • 0
  • 0
  • 0

What is QLB file?

The QLB file has been categorized as Misc Files. The author of this format is Microsoft Corporation. Additionally, the Misc Files category contains 6033 of other files. Microsoft QuickBasic Library is most often found on 1 operating systems. These systems consist of Windows, although it may occasionally be found on another system, it will be non-functional. The Microsoft Visual Studio application is recommended to open the file. It was released by Microsoft Corporation.

How to open QLB file?

An often recurring problem with Microsoft QuickBasic Library is that QLB is not associated with the correct program file. Thus, when you open QLB, the program selection wizard or some other program starts. This problem can be easily remedied.

The first thing you should do is just "doubleclick" on the QLB file icon you want to open. If the operating system has an appropriate application to support it and there is also an association between the file and the program, the file should be opened.

Step 1. Install Microsoft Visual Studio

In this case, you should first verify that the Microsoft Visual Studio application is installed on the computer. The easiest method is to use the system search engine by entering the program name Microsoft Visual Studio in it. If it is not, installation may solve the problem, as most applications create file associations during installation. Below is a list of programs that support the file QLB.

Programs to open QLB file

Remember to download programs supporting QLB files only from verified and safe sources. We suggest using the websites of software developers.

Step 2. Create association of Microsoft Visual Studio with QLB files

However, it may happen that the application itself does not cause the QLB file to open in the Microsoft Visual Studio application, but you can set it manually. It is most convenient to call the context menu with the right mouse button and select Properties. The window will show, among other things, the type of the file and the information by which the program is used to launch the file. Using the "Change" button we can set the program to handle this type. It may happen that in the next window there will be no appropriate program - however, this can be corrected with the "Browse" option where you should manually indicate the program location. The "always use the selected program ..." field will set the Microsoft Visual Studio application as the default for handling the QLB file.

Step 3. Update Microsoft Visual Studio to the latest version

The fault may also lie with the Microsoft Visual Studio program, it is possible that Microsoft QuickBasic Library requires a newer version of the program. Some applications allow you to update from the program level, and for others you need to download the installer from the Microsoft Corporation page and install.

Step 4. Check for the following problems with the QLB file

The problem may also be with the file itself if the above steps don't work. File problems can be divided into the following:

Very often, the file may be size 0 or incomplete. Usually this applies to QLB files downloaded from the Internet in case the download did not finish properly. The file should be downloaded again, making sure that the process has finished correctly.
The most common cause here is computer viruses. A quick virus scan using an up-to-date antivirus program should clear up any doubts. Alternatively, you can use the scanners available online. The scan should cover the entire computer, not only the QLB file that we want to open. Sometimes virus-infected QLB files cannot be recovered, so make a backup in advance.
This can happen especially when the program is dynamically developed and the structure of the QLB files changes over time. On their websites, developers usually offer free solutions to such problems, e.g. in the form of a conversion program or an older version of the program.
There can be many reasons for this. Repairing is very dependent on the file type. Some programs offer the option of recovering data from damaged QLB files. The easiest way is to restore the file from a backup, if there is one, or contact Microsoft Corporation
The program indicates that the file is encrypted or corrupted. The encrypted QLB files can be used by the device on which they were encrypted, on any other device it is required to have the appropriate cryptographic key and decrypt the file before its recovery.
The operating system protects files in some locations (e.g. the root of the system partition) against unauthorized access. These directories are write-protected to them and it's very hard to fix this problem. If possible, you can try to move the QLB file to another location.
This can happen on a file that does not support multiple access. In this case, the QLB file is blocked by the first application to open it. Just close unnecessary programs. If the error persists after closing other programs, wait for a while. Antivirus programs or a backup being made may lock the file for a while without the user's knowledge. If the problem persists, restart the machine.