I've been seeing this issue with a few of my users ever since disabling SharePoint Drafts. When trying to open a file, specifically an Excel spreadsheet, they'd get a message that the File Conversion in Process and then another that the Converter Failed to Save File. The strange thing is they weren't trying to covert anything or even to open it in Office Web Apps. If they open the file in Read Only mode the file opens fine and then they can click on the Edit Worksheet button and it works fine. But if they click on the drop-down context menu to Edit in Office Excel or if they click on it and choose the Edit radio button, they get this message.

After much searching and seeing posts to make sure this was installed or reinstall that or change this or modify that - all with no success. I ran across a blog post that was so simple and it actually worked. Much thanks to Amol Ghuge's post for saving the day!

When you create a new Enterprise Business Intelligence site in SharePoint 2010 and enable PerformancePoint site collection & site features, there is something that is unfortunately missing by default - a Dashboard Library. Where this becomes evident is when you are trying to deploy your first dashboard.

So, you've created your first dashboard and you're all excited to see it in action and see what the new PerformancePoint Services 2010 are really capable of. You right-click on your dashboard in Dashboard Designer and click Deploy to SharePoint. Then the Deploy To box pops us and.....it's empty. Did we do something wrong? Did we miss something? Is it waiting to populate with something? It turns out that the Deploy To box is filtering the list of available libraries in your site that you can deploy your newly made dashboard to. And, since none are created by default and you didn't create one beforehand, nothing shows up in the box.

How do we fix this? Easy! Go back to your site and click: