asked on 28th Jun 2011 | 2 Answers | Answer It!
If the file that you have is very important and you would like to keep it confidential, you can protect your file by putting a strong password. You have not mentioned which version of Excel you are using.
In order to protect your worksheet in version 2007you have to first enable worksheet protection by going to the REVIEW tab at the top of your document and clicking on PROTECT SHEET or PROTECT WORKBOOK. From there you should get a window that will enable you to set/enable the password for the worksheet in addition to allowing or disallowing users to certain areas of your workspace. In other older versions, you can implement password in the File>save box.
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If your have some problems with this files make use word 2007 repair
http://www.word2007repair.wordrepairtoolbox.com analyzes damaged text documents, corrupted due to viral infections, hardware issues or other problems

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