So I’m trying to start a VSTO Excel Workbook project and cannot seem to get the designer to actually open the spreadsheet I’ve seeded the project with.
The designer just shows a blue screen and doesn’t let me actually edit the spreadsheet.
This also occurs when I start a fresh project from scratch.
I have no issue editing the code for each sheet or the workbook as a whole, it’s just the designer that’s giving me issues.
I’m using Visual Studio 2017 with Excel 2016.
In your Windows display settings, try setting your monitor’s “scale and layout” settings to 100%.