Opening 999 Files

The 999 file type is primarily associated with EDI Software.

999	File extension: 999
	File type:	structured data file

What is a 999 file

999 files mostly belong to EDI Software. The *.999 file is an EDI file that follows the X12 standard. This file is used to exchange business data between computer systems.
It contains structured data with predefined segments and delimiters used for business transactions such as orders, invoices, and shipping notices.

The file is formatted according to X12 Electronic Data Interchange rules.

It is designed for automated data processing rather than casual viewing.

You can open it using a text editor, but accurate interpretation usually requires specialized EDI software.
FilExt.com tip: For more information, see x12.org.
Files with the extension 999 are often also jpg images or pdf documents, but zip compressed archives or medical images such as DICOM are also common. Use the Online 999 File Viewer on this page to find out the file format being used, and to view your 999 file.

How to open a 999 file

You need a suitable software like EDI Software to open a 999 file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your 999 file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a 999 file directly in the browser:. Just drag the file onto this browser window and drop it.

Online 999 Text Viewer

Choose your .999 file to view

or drag and drop it here

Online File Viewer

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How to extract texts from 999 files or capture a screenshot to PDF, JPG, DOCX, TXT, ...

You can extract texts from 999 file or capture a preview screenshot using our online 999 file viewer:

To do so, click the "Choose your .999 file to view" button above.
Your 999 file will then be displayed in the browser.
Now click on "Save as..." at the top of the page.
Then choose the file format (e.g. JPG, PDF, DOCX, TXT, ...) you want.
Download the converted file.

Programs that open and convert 999 files:

EDI Software
See the previous paragraphs to learn more about the main application. 999 files are often referred to as EDI Software data files because this type of file is primarily created or used by this software.
Multipass Security File
Sage (Backup) by Sage Software
The Sage Software family assists small and medium-sized businesses with a wide range of business management applications and services. The identifying characters used for this association are - Hex: 53 41 47 45 42 41 43 4B 55 50, ASCII: SAGEBACKUP. This file format is classified as Archive.

999 file format:

Why is it important to know the file format? This is the only way to find out which program to use to open the file. The first characters in a file identify the file format, for example, HTML files start with the bytes <html>. If the file extension does not match the file format, double-clicking on the file will cause an error upon opening. Exact knowledge of the format is therefore important in order to solve problems occurring in files. In the following you will find our evaluation of the 999 files:

The 999 file extension is not found very often and is used by a few programs, each with its own file format. However, the following two file formats are common:

60% of all 999 files use the same file format, which can be identified by the letters "ISA*00* " at the beginning. The contents of these files can even be read by a human. The files are on average 340 bytes in size and range from 290 bytes to 420 bytes. The file type is relatively new. The keywords 005010X231A1, 030240928 and AV09311993 are typical for these files. Files like these are sometimes connected to batch and node.
5% of all 999 files are using the well-known EXE file format to store the data. EXE is the abbreviation for executable and is the standard executable file format on Windows. The format can be identified by the letters "MZ" at the beginning. Executable files can also be used to distribute viruses and other types of malicious software (malware). If you open these files in a text editor, you will see only illegible characters. The average file size is 17 KB with most files being between 5 KB and 47 KB in size. Several words can almost always be found in the files, e.g. !This program cannot be run in DOS mode. Examples of file names are 000setup.999.

All other 999 files (35%) have different formats. If you want to find out which format your 999 file belongs to, just click on the button "Choose your .999 file to view".

Technical Data for 999 File Extension

File classification:

Data

Related files:

edi, x12, 837, 856, 810, ebt, ibr, caller1, caller2, ibt, ebr, 99t, 277ca, 277ibr, txt, tat, dpr, dat, pdf, 001, zip

Mime type:

text/plain

a 999 structured data file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with 999 files

Associate the 999 file extension with the correct application.
Update your software that should actually open structured data files. Because only the current version supports the latest 999 file format. Search, therefore, e.g. on the manufacturer website after an available EDI Software update.
To make sure that your 999 file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .999 file online - secure, fast, and no downloads needed.