Opening a TBI File

The TBI file type is primarily associated with HTSLIB.

TBI	File extension: TBI
	File type:	index file

What is a TBI file

TBI files mostly belong to HTSLIB. TBI files are most often a Tabix index file used for accessing large, compressed, tab-delimited text files quickly.
When used in bioinformatics, these files utilize GZIP compression to store a compact index that maps sections of a genomic dataset. This allows software to jump to a specific part of the data without reading the entire file. More details can be found at Tabix Documentation or view technical information here.
Other uses of the TBI extension include:

Disk image files: Associated with backup archives from Norton Ghost or Acronis True Image.

Toolbar button images: Used by interface customization tools like Classic Shell.

Thumbnail images: Sometimes handled by image programs such as Adobe Photoshop.

FilExt.com tip: Each usage context determines the proper software for opening and viewing the file. Check its origin and accompanying files to decide the best approach.

How can I open a TBI file?

You need a suitable software like HTSLIB to open a TBI file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your TBI file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a TBI file directly in the browser:. Just drag the file onto this browser window and drop it.

Online TBI Text Viewer

Choose your .tbi file to analyze

or drag and drop it here

Online File Viewer

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TBI file format:

If you can determine the file format, the associated program can also be determined. Each file format has a unique extension and almost always a unique signature. For example, Microsoft Word documents have the extension .docx and the signature (usually the first 3 characters in this file) PK. However, different programs can use the same file extension. Furthermore, a file extension can be renamed incorrectly and double-clicking on it will then display an error when it is opened. So a detailed analysis of a file is vital in order to determine the format and the associated program. In the following you will find our evaluation of the TBI files:

The TBI file type is a very commonly used file extension and is mainly used by one program with a specific format. The following file formats are most commonly found in TBI files:

• 65% of all TBI files use the popular GZIP file format. Gzip is a compressed archive file format. Gzip (GNU zip) is only capable of compressing a single file. These are binary files, so they do not contain words or text. TBI files can be up to 4 MB in size, but are often around 10 KB - 2 MB. This file type is based on cutting-edge technology. Such files are related to integrated, shapeit, filtered, phase, genotypes, mvncall, indel, genome, grch and snvs.
• 20% of all TBI files are Image for Windows Disk Image files. These files are binary files, so they do not contain text, but only cryptic characters. The average file size is 7 GB with most files being between 440 MB and 35 GB in size. The following keywords are characteristic: IMG2. Such TBI files store data about backup, windows, fullsoft, admin, image, office, ghost, share, soft and yark.

All other TBI files (15%) have no consistent format, the following 6 formats exist: The Bat! Message Base Index, JPG and name. The category is phased, whole, snvindels, coverage, anno, release, incl or snps. Just click the "Choose your .tbi file to analyze" button on this page to find out what your TBI file is.