file validation

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    Sites & Files Failing Security Left and Right

    i don't understand what is going on here... tl;dr------------------------------------------------------------------------------------------------------- earlier today, i went to it didn't load, because it's security/authenticity certificate whatever could not be verified. wut...
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    Solved Please Help! Excel- Office File Validation Message

    Good Morning, I recently created a spreadsheet in Excel and I received this error message: How do I open the spreadsheet without receiving this message and without having to recreate it? It is shared, multiple people in the office need to access it often. It was created on Office Excel 2003...