Excel Time logger VBScript

I spent most of a day and a half modifying a VBScript I got from the Lifehacker blog that now creates and formats a new Excel time log file every day and updates it every time it's run. The XLS this VBScript produces computes the duration of each entry, sums the total duration, and supplies the appropriate column headers and so forth.

I run it as a Windows scheduled task every 15 minutes and as a keyboard macro. The modified VBScript is available here. It's freely distributable, licensed under the GPL. The Lifehacker post that tells you how to make it run as a scheduled task and also how to make it run from your keyboard is here (it's also in the comments). Look at the VBScript to see what to change, though -- you need to change the filepath variable, not the filename.