How to force a Solution file (SLN) to be opened in Visual Studio 2013?

Question

Trying to open a VS 2012 solution (SLN file) explicitly in VS 2013 succeeds. Simply double-clicking it in Windows Explorer still opens it in VS 2012 instead.

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Answer 1

This may work for readers attempting to upgrade a solution file to Visual Studio 2015. (I upgraded a VS 2012 solution.)

1. Open the solution in VS 2015.
2. Add a new project to the solution. (I added a test project.)
3. Remove the project.
4. Save the solution.

You may want to delete the removed project folder at this time since step 3 did not delete it.

This worked for me when neither zumey’s nor TCC’s answers did.

EDIT

Metro Smurf had a similar, but easier answer than mine for a similar question. His steps were:

1. Open solution in VS 2015
2. Right-click solution > Add > New Solution Folder (name does not matter)
3. Save solution
4. Delete the newly added solution folder
5. Save solution