"Text association mining - FP growth after extract content"

Dear all!

I'm a newbie with RM and I'm trying to perform association mining through FB Growth and Create Association rules operators. I'm working on data extracted by an external crowler from different channels that are hosted on excel files (1 post per row).

I made an attempt with twitter texts and everything was fine, so I tried to use the same process for texts extracted from blogs  but it didn't work. I didn't get any error message but the system kept working for hours till I shut it down. I tried both with and without "extract content" in the process document from data but the result is the same. Mind that I'm working on a very small dataset: 58kb

Is anybody aware of how I can improve my process/ how can I fix this?

I also would like to ask how can I export rules, tables and graph resulting from these process.

Please find my xml attached and thank you in advance for your help!