Is there an e-mail template file like *.oft, which can be opened in all e-mail programs?

Question

Currently I'm writing a web interface which is full of data. I would like to export this data as an e-mail template, so you can edit the e-mail afterwards. Is there a format such as *.oft, which can be read by all email programs?

I know that there is such a function in HTML (<a href="mailto:[...]">). Since the e-mail text is very long and I want to attach files, this doesn't seems to be a good solution.

Can someone help me?

Answer 1

There's no such format as you're looking for. The internet engineers who design email protocols and format concern themselves with what goes out over the network, but not with what's internal to the machine. Email is highly interoperable when sending and receiving messages as a result, but there's no analogous standards body for internal API's. Sometimes there are de facto standards that arise from a imitating the behavior of popular piece of software, but that hasn't happened for the email feature you're looking for.