If you want to extract highlighted text from PDF file as a plain text file, then this post covers some good free PDF Highlight Extractor software to do that.

PDF Replacer is a free software to find and replace text in bulk in PDF files. You can choose font types, remove text from PDF files using blank,etc.

How to Export Calendar to Text File on Outlook. If you regularly use Outlook 2013's Calendar feature for your business, losing this data would significantly impede your productivity. To protect ...

If you need to find and replace the occurrence of a word, phrase, URL, or whatever, and it's in several documents, this can be a really tedious task.

Close the Certificate Manager. Right-click the encrypted text file containing the message you'd like to read. Select "Open with" and click "TextPad" to open it in TextPad.