SLN file extension
The table below provides useful information about the .sln file extension. It answers questions such as:
- What is the .sln file?
- What program do I need to open a .sln file?
- How can the .sln file be opened, edited or printed?
- How can I convert .sln files to another format?
Table of Contents
- ✅ Microsoft Visual Studio Solution
- ✅ SYBYL Line Notation Data
- 🔄 .sln file converters
- 🚫 .sln file related errors
We hope you find this page helpful and a valuable resource!
2 extension(s) and 0 alias(es) found in database
✅ Microsoft Visual Studio Solution

SLN file is a Microsoft Visual Studio solution.
✅ SYBYL Line Notation Data

SLN file is a SYBYL Line Notation Data. SYBYL Line Notation (SLN) is an ASCII language used to represent chemical structures, including common organic molecules, macromolecules, polymers, and combinatorial libraries.
Other types of files may also use the .sln file extension.
🚫 The .sln 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 .sln 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:
example.sln
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 .sln 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 .sln file extension, write to us!