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.IFB·File Extension

IFB Data & Text — A .ifb file is a IFB Data & Text. It is a text-based data format widely used for configuration files, data interchange and API payloads.

Data & Texttext/calendar

Quick facts

Extension.ifb

File typeIFB Data & Text

MIME typetext/calendar

CategoryData & Text

Charset—

Compressible—

What is .ifb

What is a .ifb file?

A .ifb file is a IFB Data & Text. It is a text-based data format widely used for configuration files, data interchange and API payloads.

In the mime-db registry it maps to text/calendar. When serving .ifb over HTTP, set the Content-Type header as shown in Developer info below.

Related entities: it maps to text/calendar — and is delivered over HTTP via the Content-Type header.

How to open .ifb files

Use VS Code or Notepad++ to open and edit .ifb files.
Any text editor (Notepad, VS Code) can inspect the raw content as text.

Developer info

When served over HTTP, responses should set the following header:

Content-Type: text/calendar

Common software that reads/writes .ifb:

VS CodeNotepad++Sublime Textjq

Relation chain

.ifbextension of

format

IFB Data & Textserved as

mime type

text/calendarsent via header

http header

Related extensions

Related MIME types

Common uses

Configuration files
Data interchange between systems
API request and response payloads
Logs and data exports

How to edit .ifb files

Open the file with VS Code, make your changes and save.
Most editors preserve the original formatting and encoding — avoid changing the charset.

How to create .ifb files

Create a new file and save it with the .ifb extension, or export this format from VS Code.

Frequently asked questions

What programs can open .ifb files?

Common options include VS Code, Notepad++, Sublime Text. You can also open many of these files with built-in viewers or a browser.

How do I create a .ifb file?

Create a new file in any text editor or the app that owns the format and save it with the .ifb extension.

What is the relationship between .ifb and the text/calendar MIME type?

text/calendar is the media type identifier used for .ifb files during network transfer (for example in the HTTP Content-Type header).

Sources & standards

Updated 2026-09-13

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