iBobi, I just went to try again and the text on the upload page still shows the limit of 200 KB. When I tried to upload the spreadsheet, I found that this does, in fact, still seem to be the limit as the sheet was rejected. Just in case, I cleaned out my cookies and re-logged-in, to no avail.
Cheers.
Looking at the settings, it shows the new size of 7340032. Which means maybe the wrong size is displaying, but you should be able to upload files as large as 7340032.