I have opened a xyz.txt file in write mode .I want to print text in xyz.txt file (to be print data is in words/strings) I use fprintf and sprintf both but didn't work . Also I want to use regexp to convert sentences to words ,each in a new line , I

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libra
libra 2018-1-8
评论： Stephen23 2018-1-8
I use fileread,regexp, and sprintf inside fopen and then finally use fclose
  2 个评论
Stephen23
Stephen23 2018-1-8
libra's "Answer" moved here:
Also I want to use regexp to convert sentences to words ,each in a new line , I did it but I want to remove alpha numeric words from my sentences.how can I modify my 'expressions ' of regexp.and write it in xyz.txt file
Stephen23
Stephen23 2018-1-8
"how can I modify my 'expressions ' of regexp.and write it in xyz.txt file"
Read the documentation for each function that you are using and use the functions correctly to achieve what you want.
If you want help with this then show us what you have tried so far.

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