Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I created a really simple chart based on 2 columns (date and numeric value).
I click on the chart, go to Chart Tools/Layout. The Trendline drop down is greyed out.

What am I missing?

share|improve this question

You need to make sure your dates are proper Excel dates, not just text representation of dates.

An easy way to test this is select your dates in the column and press Control + 1 to format them as numbers. If all the cells turn to numbers then you have proper Excel dates. If they still show as dates then they are text representations of dates and you'll need to convert before you can create a trendline.

share|improve this answer
  1. Just select the chart you want to add/activate a trendline then
  2. click "INSERT" tab just after "home" office tab then
  3. click the drop down arrow of "Area" chart type, then
  4. select "Area" instead of "Stacked area"
share|improve this answer

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .