If you are seeking information about file extensions, then you are in the right place at right time.

Details of extension .sex

On this page, we're going to take a closer look at the .sex file extension, which is related to Alpha Five Set Index. We'll explain what exactly a .sex fileformat is and how you can use it. If you're interested in learning more details about this type of file, we'll show you where to find them. And if you ever need to convert .sex files into different formats, we'll give you some tips on how to do that too. Let's see the file format associated with this file extension!


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sex file - Alpha Five Set Index

Alpha Five Set Index

The SEX file is an Alpha Five Set Index. Alpha Five is a beginner friendly application development environment.
Category: Development files
Application: Alpha Five
Program name: -
Mime-type: application/octet-stream
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:
.ddx Alpha Five Data Dictionary Index
.aex Alpha Five Compiled Library Script
.rmuf Alpha Five Runtime Users Data
.bmt Alpha Five Image Library

The .sex file extension might not only belong to a single type of file, there could be various kinds that use it. Keep in mind that files with the .sex extension may contain various content types. If you have helpful information about this extension, write to us!

Could someone have spelled the .sex file extension wrong?

In our database, we came across the following similar extensions:

.se Shuttle Source
.swx 1.0 Text Document
.sec GuinXell Video Data
.xex Xbox 360 Executable
.esx Xactimate Insurance Claims Estimate
.ses SPECCTRA Session File

The .sex extension is frequently misused

People sometimes confuse the .sex filename extension. Based on the searches on our site, here are the most common misspellings from the past year.

se (1), swx (1), sec (1), xex (1), esx (1), ses (1), qex (1), sx (1), eex (1), sdx (1)

Having trouble opening a .sex file?

If you want to open a .sex file on your computer, you just need to have the appropriate program installed. Incorrect settings for the .sex association can trigger this error.

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select from a list of programs that are installed on your computer.

To change file associations:

  • Right-click a file with the extension whose association you want to change, and then click Open With.
  • In the Open With dialog box, click the program whith which you want the file to open, or click Browse to locate the program that you want.
  • Select the Always use the selected program to open this kind of file check box.

Supported operating systems

Windows Server 2016/2019/2022, Windows 7, Windows 8, Windows 10, Windows 11, Linux, Mac OS X, macOS, iOS, Android