TLB File Extension
OLE Type Library
- File Type tlb
- Developer Microsoft
- Popularity
- Application Microsoft Visual Basic
- Category System Files
What is a TLB file?
Files with the TLB extension are specifically tied to OLE Type Library, a System Files type, and there are 251 files in this category.
The OLE Type Library (TLB), created by Microsoft, is one of file format they developed, and they also built 242 programs to support them.
TLB files are compatible with various operating systems, including Windows and Mac OS. When working with TLB files, you can rely on 4 programs, including Microsoft Visual Basic, RAD Studio and Microsoft Excel.
File Signature
HEX code: 4D 53 46 54 02 00 01 00. ASCII code: MSFT.
Programs that support TLB files
How to open a TLB file?
If you can’t open a TLB file, it is usually because the necessary software is missing. To resolve the issue, select the right program from the list for your operating system. Then go to the official website of the developer, download the software, and install it.
Microsoft Visual Basic, RAD Studio and Microsoft Excel are among the most widely used programs for handling TLB files. To install the most up-to-date edition of Microsoft Visual Basic, visit the official Microsoft website. You can download the build that works across all operating systems.
After installing, your OS should instantly open TLB files with Microsoft Visual Basic.
Setting Microsoft Visual Basic as default TLB viewer
Change the default app for a file type in Mac
- Initiate a right click or use Control + left click on the desired TLB file to open a menu where you can select various actions;
- Choose "Open in Application" and click "Other";
- Look towards the bottom of the window, where you will find the "Enable" menu. "Recommended programs" will be the default selection;
- Choose "All Programs" in this menu and search for Microsoft Visual Basic. Check the box next to "Always open in app" to set it as the default option.
Change default programs in Windows
- Take the first step by right-clicking on your TLB file. Next, select "Open With" and then choose "Choose another app" from the available options;
- Choose Microsoft Visual Basic from the available applications listed in the pop-up window to set it as the default application to open your TLB file;
- Be sure to check the "Always use this app" checkbox, and then click "OK" to confirm your selection.
Tips and tricks to solve problems with TLB files
Problematic TLB files can usually be resolved by making small changes in your software. See the tips below to help fix common issues.
Are there any techniques or tools available to repair a damaged TLB file?
In a data recovery program, open the damaged TLB file and select the "Repair" menu option. Wait for the recovery process to finish as it will automatically restore the damaged system files.
How do I know if my TLB file has been damaged?
The signs of corrupted TLB system files can manifest as:
- Error alerts occur when actions are performed on the file;
- The file shows slow performance when edited in Microsoft Visual Basic;
- The file encounters problems during the opening process or shows error indications;
- An unexplained increase in the size of the TLB file;
- The file causes Microsoft Visual Basic or other software to hang or crash during various operations;
What factors contribute to Microsoft Visual Basic crash?
Lack of software updates is a possible reason behind Microsoft Visual Basic crash. Keep your Microsoft products up to date by installing the latest updates.
Restarting your computer is an essential troubleshooting step that can resolve many common problems. It is recommended to restart your computer before making any changes to the software settings.
How to edit a TLB file?
To modify TLB files, it is necessary to install dedicated software that lets you open and edit system files. Online TLB editors generally offer fewer tools compared to programs designed for OLE Type Library.
Best TLB editors 2026
Based on the specified criteria, here is a list of TLB editors that may fit your requirements.
| TLB Editor Software | Developer | Platforms | Overall Rating |
|---|---|---|---|
| Microsoft Visual Basic | Microsoft | Windows | 4.6 out of 5 (42 reviews) |