Here is a free monthly calendar for 2011. You can download it as a XLS spreadsheet for Excel, Open Office, or whatever spreadsheet application you use.
I’ve previously produced a one page calendar for 2011, but I had a request to produce a month by month version, with each month on a separate tab. Here is what September 2011 looks like.
And here is a zoomed in picture of the calendar months listed on the tab at the bottom.
It is a free download, and only 13kb zipped up, or 96kb uncompressed.
The days of the week are along the top in a frozen pane, and the weeks are along the side. I’ve put the week numbers in as well (ISO 8601 week numbers if these things matter to you).
Download the 2011 monthly calendar – Excel XLS (13kb zipped)
This calendar should be viewable on Excel 97 and above.