Opening an HTF File

The HTF file type is primarily associated with Custom Viewer.

HTF	File extension: HTF
	File type:	data file

What is an HTF file

HTF files mostly belong to Custom Viewer.

Overview: HTF files mainly serve as Hash Table Files and can act as HTML Application shortcuts. They usually store key-value data for internal program use.
Consider these points:

Hash Table / Shortcut: Most HTF files hold structured data that helps applications quickly find and access information.

Surveying Data: A small number of HTF files are used by Topcon instruments to record land surveying information.

FilExt.com notes: If you want to open a HTF file, use the software that created it. For hash table or shortcut files, a text editor or code viewer might reveal readable content. For surveying data, specialized Topcon software is needed.

How to open HTF files

You need a suitable software like Custom Viewer to open an HTF 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 HTF file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a HTF file directly in the browser:. Just drag the file onto this browser window and drop it.

Online HTF Text Viewer

Choose your .htf file to analyze

or drag and drop it here

Online File Viewer

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HTF format details:

The file format determines how the data is stored in the file. The initial characters of a file are called signature, sometimes also referred to as "magic bytes". The signature can be used to infer the file format. Nonetheless, different programs can utilize the same file extension to represent distinct file formats. Double-clicking on the file often results in an error when opening. So a detailed analysis of a file is vital in order to determine the format and the associated program. Below you will find our evaluation of the HTF files:

HTF is not a commonly used file extension and is primarily used by a single program. The following file formats are most commonly found in HTF files:

• 70% of all HTF files start with the bytes 0C 00 00 00, which are crucial for this file format. These are binary files, so they do not contain words or text. A typical file size is 5 MB. The file type was developed 10 years ago and is still in use today. 1.htf is a typical file name.
• 4% of all HTF files have the same signature JOB . These files are text files and can therefore be read using a text editor. A typical file size is 74 KB. Several words can almost always be found in the files, e.g. INST.

All other HTF files (26%) have different formats. They are often associated with increment. If you want to find out what your HTF file contains, drag and drop it onto this page.