So it looks like the first time I open a document-type in Imported Items, it asks which program it wants to use to open the file. I select the appropriate one (this works for Word, Excel, and pdf files, at least). I then get a dialog box asking if I want to always use that program for that file type. If I click "yes", from then on those file types open instantly. This occurs in any patient's chart, and even if the program (Word, etc.) is not open.
