Normally I'd try to figure something out to get everything working, but this weekend I had to input my students' grades so I could discuss their test scores with them on Monday, so I didn't have time to go on a wild Windoze chase for a solution. Instead, I tried out the import feature of Google Docs, and overall I was pretty impressed. Let me share the details...
But first, let me back up. I did try two things to get Excel to work: 1) I ran the installer again hoping it would repair whatever was broken, and 2) I completely uninstalled, restarted, and re-installed Office. Both solutions still left me with a broken version of Excel. I'm still hoping that it's just a compatibility issue with the brand-new update of Windows, but for now, I've at least got options.
I have actually wanted to try out Google Drive's import feature on a complex spreadsheet for a while, but never got around to it. The biggest benefit from this will be that I can access the grade book for my class anywhere on the web when I need to. There have been a couple times when this would have been handy, and although Dropbox does give me roundabout access, it doesn't work too great on my Chromebook.
After importing it, there was only one issue with my entire grade book, which is that Google Spreadsheets don't support the AVERAGEIF function from Excel. Luckily, I found this forum post that provided me with a pretty simple workaround.
The key is if you have a function in Excel like this:
=AVERAGEIF(A5:A10, ">1", B5:B10) (Range, Criteria, [Sum Range])the equivalent Google Spreadsheet version uses the FILTER function inside the AVERAGE function like this:
=AVERAGE(FILTER(B5:B10; A5:A10 > 1)) (Sum Range, Array Condition 1, ...)
In my case, the sum and criteria ranges were the same, so it made it even easier because there wasn't a chance of mixing things up.
I was also impressed that the graphs in my spreadsheet stayed nearly exactly as they were in Excel. I had never used the graph feature before in Google Spreadsheets, and found it to be better developed and more robust than I thought it would have been.
The bottom line is, if you've been holding out on using Google Spreadsheets to replace some of your Excel data, it may be less painful than you might think. It sure was for me.