I have two questions regarding my Nexus 7 and pdf files. I tried to save a pdf attached to an e-mail, and was asked to choose btween Kindle and Quick Office and whether to make the choice permanent or one time. I mistakenly chose Kindle+permanent. Now the only way I can access the pdf is to go to the saved email and click the attachment. Then I get linked to Kindle which opens the pdf. Needless to say that is a lot of unnecessary selection. I tried to find the pdf file with File Manager but could not locate it. I tried to create a bookmark to the email, but could not do that either. So my questions are:
1. How do I undo the permanent choice of Kindle?
2. If I cannot do that, how do I create a link or shortcut or bookmark to the email so I can get to it quickly?
3. How do I find the folder to which the pdf was saved?
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