ES Strong File Explorer question?

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http://androidforums.com – All- Quick question regarding ES File Explorer, I set up a few share folders on my pc and I am able to get to the network folders to view / access folders / files as expected but unable to change / save anything? Is this a limitation of the app because I have double and triple checked my share permissions and everything is good to go. I can view / access a MS Word doc for example but when I go to make a change and save on my Galaxy Tab it does not save and change the information when I go back in after closing the document? Thanks..... (General)