IN File Extension

The IN file extension was created by GNU Project and is also known as the Autoconf Input File. IN is classified as a Developer Files and This file is saved in a plain text format. You can open and view the contents of this file using a text editor<\/a>. You can open IN files in CFAST program.

Autoconf Input File Type

Autoconf Input File Type
Extension .in
Developer GNU Project
Popularity 5.0 (1 Votes)
Mime Type mime-type/not.available
Default Program CFAST
Category Developer Files
Format Text
Updated 7/1/2025

What is a IN File Type?

Autoconf is part of the GNU compilation system, which creates custom compilations of applications for different platforms. C' is l' one of many GNU building tools, including Automake, Gnulib and Libtool.NOTE: Whereas the GNU community once encouraged developers to name their configuration file configuration.in-superior, they now recommend that developers name their configure file.ac-superior.

How to Open IN File?

You can open an EN file in a text editor such as Notepad (Windows) or TextEdit.

If you want to edit an IN file, however, it is preferable to use a source code editor, such as NotePad + + or Atom. They provide useful source code editing tools and correctly highlight the syntax.

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Free Online IN Tools & Apps

Access powerful and secure free online IN tools to convert, view, edit, merge, split, and compare IN files — all without installing any software. Our tools support the .IN (Autoconf Input File) file extension and run smoothly in any modern browser.

Select a tool below to explore features and manage your IN files directly from your device with ease.

IN Files Common Issues

There are few common issues with the Autoconf Input File .IN=11355 File Extensions while opening the .IN=11355 files on Windows and MacOs, we have solution to those issues such as:

Can't Open IN Files?

  1. You must have supported software programs installed for Autoconf Input File on your system such as CFAST.
  2. Associate default Cfast CFAST program for *.in (Autoconf Input File) files.

    Associate IN Default Program on Windows
    1. Right-click a *.IN (e.g example.in) file and click Open With.
    2. In the Open with dialog box, click Cfast CFAST program Or click Browse to locate the program (*.exe) that you want.
    3. Select check box for Always use this app to open .in files.

    Associate IN Default Program on MacOs
    1. Click *.IN (e.g example.in) file and click information -> Open With.
    2. In the programs list, click Cfast CFAST program Or other appropriate program that you want.
    3. Confirm Change for all... and Contine.
    4. A message will appear "This change will be applied to all files with .CFAST extension. By clicking Continue you confirm your selection", click Contine to apply changes.

Related IN File Extensions

IN default file extension is .IN and other similer related extensions are:

All Platform Software Programs for IN File Extension

List of all softwares that can open the IN files on each platforms such as Windows, Mac, iOS, Linux, Web and Android, you may click the each software link for more details for other supported formats for each software and the verified direct download links for each software with complete lisensing details.

Microsoft Windows logo image Open IN File on Windows

Software License Developer
CFAST image. CFAST 000 for Windows Free CFAST
IDM UltraEdit image. IDM UltraEdit 24 for Windows Commercial IDM

MacOs logo image - FileProInfo.comOpen IN File on Mac OS

Software License Developer
IDM UltraEdit image. IDM UltraEdit 24 for MacOs Commercial IDM

Linux logo image - FileProInfo.comOpen IN file on Linux

Software License Developer
IDM UltraEdit image. IDM UltraEdit 24 for Linux Commercial IDM

Website logo image - FileProInfo.comOpen IN file on Web

Software License Developer

iOS logo image - FileProInfo.comOpen IN file on iOS

Software License Developer

Android logo image - FileProInfo.comOpen IN file on Android

Software License Developer

About Licensing

  1. Free Trial This software are often used for an attempt period, like 14 days, before requiring payment. Some trial versions have a reduced feature set.
  2. Free This software is liberal to use. Examples include open-source , freeware software, like free programs supported by advertising.
  3. Free+ This software is liberal to download and use, but contains in-app purchases (IAP) to unlock additional content or functionality.
  4. Paid This software must be purchased so as to use it. it's going to be offered as a perpetual license or ongoing subscription.
  5. Included with OS This software is bundled with an OS , like Windows, macOS, or Android.

IN file extension icon image.About IN - Autoconf Input File

FileProInfo is to help you understand about the Autoconf Input File with *.IN suffix, and provide the complete detail as how to open, edit, convert, merge, split and compare it with other related software programs, software download links and free online apps and tools.

Our professional team members at FileProInfo have been individually researched and verified the details for IN. We want to be 100% accurate and publish the information about file formats, tools, apps and software programs that we have tested and validated.

If you would like to suggest any additions or updates to this page for IN, please let us know.

Updated 7/1/2025