Known _SLN Files

Chief _SLN Description

._SLN

Extension:	._sln
Group:	Microsoft Visual Studio Launcher Data

A _SLN file suffix is fundamentally associated with the Microsoft Visual Studio, a software development tool for various platforms. The file contains different data used by the Visual Studio Launcher.

Organization:	Microsoft Corporation
Group:	Data Files
Subkey:	HKEY_CLASSES_ROOT\._sln

Software Programs That Open The Microsoft Visual Studio Launcher Data:

Microsoft Visual Studio by Microsoft Corporation

Windows

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Understanding _SLN Issues

Typical _SLN Opening Challenges

Microsoft Visual Studio Not Present

You encounter an error message such as "%%os%% Can't Open _SLN Files" when trying to open your _SLN. If this is the case, it's usually due to the fact that you do not have Microsoft Visual Studio for %%os%% installed on your computer. Your operating system cannot associate your _SLN with Microsoft Visual Studio, so double-clicking the file won't work.

Tip: If you don't have Microsoft Visual Studio installed, and you know of another program to open your _SLN file, you can try opening it by selecting from the programs listed under "Show Apps".

Obsolete Version of Microsoft Visual Studio

Sometimes your installed version of Microsoft Visual Studio won't support your Microsoft Visual Studio Launcher Data file. You will need to download a newer version of Microsoft Visual Studio if you don't have the right version. The primary cause of this problem is that your Microsoft Visual Studio Launcher Data file was created by a different (newer) version of Microsoft Visual Studio than what's installed.

Tip: If you right-click on your _SLN file, then select "Properties" (Windows) or "Get Info" (Mac), you can obtain hints about what version you need.

Ultimately, most of the difficulties opening _SLN files are due to having the wrong version of Microsoft Visual Studio installed.

Other Causes of _SLN File Opening Problems

Even with the correct version of Microsoft Visual Studio installed, you can still experience difficulties opening _SLNs. If you are still having problems opening _SLN files, there may be other issues that are preventing you from opening these files. Issues that aren't software-related:

• _SLN file type Registry entries are wrong
• The _SLN file description within the Windows Registry was removed
• Defective install of a _SLN program, such as Microsoft Visual Studio
• Something has caused file corruption of your _SLN
• _SLN file integrity has been compromised by malware
• _SLN-related hardware has device drivers that obsolete
• Too many applications are open on your PC to load your Microsoft Visual Studio Launcher Data file successfully