A daily updated filename extension database!

AIN file extension

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

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

Table of Contents

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

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

✅ ArcGIS Optional Index

AIH file is an ArcGIS Optional Index. The files that store the attribute index of the active fields in a table or a theme's attribute table.
Category: GIS files
Application: ArcGIS
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
AIH aliases:
AIH related links:
AIH related extensions:
ArcInfo Binary Coverage

ArcInfo Band Interleaved by Line Image

ArcInfo Band Interleaved by Line Image

ArcInfo Band Sequential Image

ArcInfo ASCII Export

Geography Markup Language Document

MapInfo Table Document

FME Document

FME Feature Store

SIA dataMap GIS Export

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

🚫 The .ain file extension is often given incorrectly!

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

ai, aib, aig, aih, aij, aim, aln, an, ani, ian, in, qin, win, xin, zin

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Opera Saved Session
Visual FoxPro Window File
Adobe Illustrator Drawing
ClustalW2 Alignment Data
Windows Animated Cursor
Valve Source Model Animation Data
General Input File
ArcInfo Binary Coverage
OmniMark Include File
ZINDO Input Data

🔴 Can't open a .ain 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 .ain 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 .ain file extension, write to us!

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