如何使用PHP从HTML中提取或过滤掉信息？

I get an email with an html document every day with statistics from the day earlier. This HTML is hard to read for all users, so I want to extract information from this table "automaticly" with a php script. I will put the source code under here, where I just edit out sensitive information. The lines are "endless", so I just include a few lines so you can see the idea.I get an email with an html document every day