![]() ![]() The only way around this is just that-a workaround. It is entirely possible that your hidden columns could suddenly be visible and simple password protection eliminated. Many programs (including Numbers and Sheets) can open Excel workbooks, and what they actually pay attention to and import varies from program to program. Even so, Paul wonders if there is a way to hide columns or protect workbooks that Numbers and Google Sheets cannot unlock. Later versions of Excel, beginning with Excel 2013, use advanced encryption techniques which make it more difficult to open protected Excel workbooks. This is especially true with workbooks created in earlier versions of Excel. Paul notes that an Excel workbook opened in Numbers (Apple) or Google Sheets (online) appears to have the password removed and all hidden columns available to be viewed.
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