I've finally been able to get back to working on the project with the Aspose.Grid in it. I tested out v188.8.131.52, and it appears to work as expected. The shift/mouse click was doing what I was expecting. It should make the client a little happier.
I've run into an issue with formulas that contain references to other worksheets. For example, my excel file contains two worksheets, "TestA" and "TestB". In TestA, the cell at A1 contains the value "This is a test.". In TestB, there is a cell that contains the formula ='TestA'!A1. In Excel, the value of the cell in TestB is "This is a test.", but when I load it in the Aspose.Grid, the cell remains blank.
I was looking through the Aspose.Grid Wiki (good job on the update by the way), and couldn't find anything about this. Does the Aspose.Grid currently support this kind of functionality, or are there any plans to add it?