Open Solution Command
Opens an existing solution, closing any other open solutions.
File.OpenSolution filename
Arguments
Filename
Required. The full path and file name of the solution to open.The syntax for the filename argument requires that paths containing spaces use quotation marks.
Remarks
Auto completion tries to locate the correct path and file name as you type.
Example
This example opens the solution, Test1.sln.
>File.OpenSolution "c:\MySolutions\Test1\Test1.sln"