有像*这样的电子邮件模板文件吗?oft，哪些可以在所有电子邮件程序中打开?

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?Currently I'm writing a web interface which is