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Basic information about TLB file

When there is a problem with opening files with the file extension TLB（*.TLB or *.tlb）, you do not need a computer expert. In most cases, using the helpful suggestions of experts contained in our website as well as appropriate programs, you can solve the problem with the TLB file yourself.

There are 6 file types using the TLB file extension in our database. In the further part of this page, you will find detail information about all the TLB file with their brief description and a list of programs that support TLB file sorted by operating systems. The table below provides useful information about the TLB file extension. It answers questions such as:
  • What is the TLB file?
  • How to open a TLB file?
  • What programs do I need to open a TLB file?
  • What programs help to create and edit a TLB file?
  • How to convert TLB files to another file format?
  • How to convert another files to TLB file format?


1.Detail information about TLB file extension: OLE Type Library

File type OLE Type Library Category Misc Files
Developer Microsoft File format Binary
Description TLB file is a OLE Type Library developed by Microsoft. Contains user interface data for programs that support Microsoft Object Linking and Embedding (OLE); generated by Visual Basic when an OLE or ActiveX server is created and the "Remote Server Support Files" option is selected.
Software programs that will open, edit or convert TLB files

Windows		 Microsoft Excel 2016
Microsoft Windows

macOS		 Microsoft Excel 2016


2.Detail information about TLB file extension: VAX Text Library

File type VAX Text Library Category Text Files
Developer N/A File format N/A
Description TLB file is a VAX Text Library.
Software programs that will open, edit or convert TLB files

Windows		 HP OpenVMS
may be opened with a text editor


3.Detail information about TLB file extension: CHASE Evaluation And Audit System File

File type CHASE Evaluation And Audit System File Category Data Files
Developer N/A File format N/A
Description TLB file is a CHASE Evaluation And Audit System File.
Software programs that will open, edit or convert TLB files

Windows		 Chase


4.Detail information about TLB file extension: Portfolio Automation Interface

File type Portfolio Automation Interface Category Data Files
Developer N/A File format N/A
Description TLB file is a Portfolio Automation Interface.
Software programs that will open, edit or convert TLB files

Windows		 Portfolio


5.Detail information about TLB file extension: TrialDirector Toolbar File

File type TrialDirector Toolbar File Category Data Files
Developer N/A File format N/A
Description TLB file is a TrialDirector Toolbar File.
Software programs that will open, edit or convert TLB files

Windows		 TrialDirector


6.Detail information about TLB file extension: Visual C++ Type Library

File type Visual C++ Type Library Category Data Files
Developer N/A File format N/A
Description TLB file is a Visual C++ Type Library.
Software programs that will open, edit or convert TLB files

Windows		 Visual C++
Borland C++
Visual C++



Can't open a TLB file?

When you click a file to open it, operating system examines the filename extension. If operating system recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When operating system does not recognize a filename extension, you receive the following message:

”Can't open this file: example.TLB”。

To open this file, you install one of the applications from the list of software programs that you found here, you should be able to open, edit or convert the file with the TLB extension without any issue.


Where I can download the application that support TLB file?

If you do not know where you can download the application from our list, click on the link (which is the name of the program), you will find more information there on the location where to download the required application. Most often they are the websites of software manufacturers.


How to change file associations?

  • Right-click a file with the extension whose association you want to change, and then click "Open With".
  • In the "Open With" dialog box, click the program whith which you want the file to open, or click "Browse" to locate the program that you want.
  • Select the ”Always use the selected program to open this kind of file” check box.


Can I change the extension of TLB files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read/open the file. The problem is, changing the file extension does not change the file format. Select a software program from our list and install it on your computer. If the file has not opened correctly, you have to look for a different software program from our list. Sometimes you have to repeat the operation several times.


What else may cause problems width open a TLB file?

The reasons for the lack of the ability to open a TLB file on your computer may be at least several. The easiest thing is to find a suitable application installed on your computer, which will open a TLB file. If there is still something wrong, you might want to check:

  • Whether the TLB file is damaged.
  • Whether the TLB file is incorrectly linked in the registry entries.
  • Whether the TLB file extension has been accidentally removed from the Windows registry.
  • Whether the installation of an application that supports the TLB file format is incompletely.
  • Whether the TLB file is infected.
  • Whether the drivers of the equipment used for opening a TLB file are up to date.
  • Whether your computer has enough hardware resources to open a TLB file.

If the TLB file still not working with your software after eliminating the above shortcomings? That means that the problem is more complex and requires the help of a specialist.