IN File Type

- The quick facts

What are IN files and how to open them

Are you having problems opening an IN file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is an IN file?

An .IN file is a CFAST input - data file.

We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

How to open IN files

Important: Different programs may use files with the IN file extension for different purposes, so unless you are sure which format your IN file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested 7 different IN openers which you will find listed below.

Last updated: May 11, 2021

Suggest another file format using extension IN

While we know of one file format using the .IN file extension, there may be more. It is widespread that different programs use files with the same file extension for very different types of data. Please let us know if you are aware of a different kind of .IN file.

Various apps that use files with this extension

These apps are known to open certain types of IN files. Remember, different programs may use IN files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Notepad++Notepad++User submitted
CFASTCFASTUser submitted
RJ TextEdRJ TextEdUser submitted
eclipseeclipseUser submitted
DeltaECDeltaECUser submitted
Multi-EditMulti-EditUser submitted
ENVI-EddiENVI-EddiUser submitted