Opening a MYI File

The MYI file type is primarily associated with MySQL.

MYI	File extension: MYI
	File type:	database index file

What is a MYI file?

MYI files mostly belong to MySQL by Oracle. MYI stands for MyISAM index file. MYI files are database index files associated with MySQL.

• Main Use: MySQL is an open-source relational database management system (RDBMS), that is widely used in the maintenance of Internet database servers. MYI files are used to store the index of MyISAM tables belonging to a MySQL database. MYI files contain data that is useful in defining the structure of tables. These files also contain a counter in its header that serves as a control mechanism to check table integrity by indicating whether the MyISAM table has been exited properly or not.
• Features: Each MYI file has two sections, the header section, and the key-values section. The MYI file header contains information about the options, file sizes, and keys. The main header sections are named state, base, keydeff, and recinfo. The key-values section consists of key-value blocks with values from one single index.

How to open MYI files

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

Online MYI Text Viewer

Choose your .myi file to analyze

or drag and drop it here

Online File Viewer

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MYI format details:

Each file has a definite file format, that is, how the stored data is arranged in the file. A file format is determined by the file extension and signature, so JPEG images have the extension .jpg and the first bytes in the file are ÿØÿ. If the file extension does not match the file format, double-clicking on the file will cause an error upon opening. Exact knowledge of the format is therefore important in order to solve problems occurring in files. Below is our analysis of the MYI files:

The MYI file extension is used very often and mainly uses a special format. The following file formats are most commonly found in MYI files:

• 96% of all MYI files are associated with MySQL MyISAM tables index. The contents of these files cannot be read by a human; only a computer program can interpret the data. The files are 1 KB to 860 KB in size, with a median of 4 KB. The file type was developed 10 years ago and is still in use today. Examples of file names are user.MYI. Such MYI files store data about priv, secmen, users, csort, host, item, columns, admin and come.

All other MYI files (4%) have different formats. Often described as account, proto, store, data, proc, template, product, orders, tables or event. You can get all the details of your MYI file by dragging it onto this page or by clicking the button "Choose your .myi file to analyze" above.