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H77T file extension

The table below provides useful information about the .h77t file extension. It answers questions such as:

  • What is the .h77t file?
  • What program do I need to open a .h77t file?
  • How can the .h77t file be opened, edited or printed?
  • How can I convert .h77t files to another format?

Table of Contents

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ GEODAS MGD77T Header Data

H77T file is a GEODAS MGD77T Header Data. NCEI GEODAS (GEOphysical DAta System) desktop software tools can be used for working with data downloaded from NCEI's trackline web presence, especially NCEI-developed downloaded formats.
H77T format description not yet available
Category: Data files
Application: GEODAS
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
H77T aliases:
H77T related links:
H77T related extensions:

Other types of files may also use the .h77t file extension.

🚫 The .h77t file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:


Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:


🔴 Can't open a .h77t file?

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

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .h77t file association, check the FAQ.

🔴 Can I change the extension of 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 the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .h77t file extension, write to us!

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