Very frustrating on my Samsung Galaxy S2 I could edit my word dcuments and save them. On my new device(Samsung Galaxy Tab A7) they open as 'read only' fies and I can do nothing with them except open them and print them. Very disappointing. Have just discovered that because my device is 10.4" I have to pay for a subscription to be able to edit documents. I have a subscription to Microsoft on my laptop but can't use this on this device! Wake up Microsoft. Why should I have to pay twice!