ASN file: How can I open a .ASN file?
The table below provides useful information about the .asn file extension. It answers questions such as:
- What is the .asn file?
- What program do I need to open a .asn file?
- How can the .asn file be opened, edited or printed?
- How can I convert .asn files to another format?
We hope you find this page helpful and a valuable resource.
✅ Atlantis Word Processor Sound Scheme

The ASN file is an Atlantis Word Processor Sound Scheme. Atlantis Word Processor is a stand-alone word processor for Microsoft Windows developed by Rising Sun Solutions, Inc.
✅ NCBI ASN.1 Data

The ASN file is a NCBI ASN.1 Data. ASN.1, or Abstract Syntax Notation One, is an International Standards Organization (ISO) data representation format used to achieve interoperability between platforms. NCBI uses ASN.1 for the storage and retrieval of data such as nucleotide and protein sequences, structures, genomes, and MEDLINE records.
✅ Uniface Assignment Data

The ASN file is a Uniface Assignment Data. Uniface is a development and deployment platform for enterprise applications that can run in a large range of runtime environments, including mobile, mainframe, web, Service-oriented architecture, Windows, Java EE and .NET.
✅ GameSpy Arcade Skin Data

The ASN file is a GameSpy Arcade Skin Data. GameSpy Arcade was a shareware multiplayer game server browsing utility.
✅ Abstract Syntax Notation One Data

The ASN1 file is an Abstract Syntax Notation One Data. Abstract Syntax Notation One (ASN.1) is a standard and notation that describes rules and structures for representing, encoding, transmitting, and decoding data in telecommunications and computer networking.
⚠ Be careful with .asn files.
It's important to know that the .asn file extension can be used by various programs, not just the ones you expect. This includes potentially harmful software or malware that might create .asn files. Be cautious when dealing with .asn files from unknown sources.
🚫 The .asn file extension is often given incorrectly!
According to the searches on our site, these misspellings were the most common in the past year:
Is it possible that the filename extension is misspelled?
We found the following similar file extensions in our database:
🔴 Can't open a .asn 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:
Select an app to open this .asn file
It means that the operating system does not have a default app associated with the .asn file type. To resolve this issue and open the file, you can take the following steps:
- Right-click on the .asn file. A context menu will appear.
- From the context menu, select Open with. Windows will display a list of recommended apps.
- If the desired app is listed, select it from the provided options.
- If you cannot find the appropriate app, you may need to install software that supports the specific file type.
If you don't know how to change the default app for the .asn file, check the FAQ.
🔴 Can I change the extension of files?
Changing the filename extension of a file is not a good idea. The extension of a file serves as a hint to the operating system and various software programs about the type of data contained within the file. When you alter a file's extension, you essentially modify how software applications interpret and handle that file. Every file has a specific format, also known as its file type or file format. The problem is, changing the file extension does not change the file format.
If you have helpful information about the .asn file extension, write to us.