Poweriso the file format is invalid or unsupported

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Step 2: Move your cursor down until you see the export option and click it. Step 1: Open Microsoft Excel and choose a file that you have previously opened. To determine if this is the case, find out if your Microsoft Excel supports the.

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The most common reason why Excel cannot open a file is because the file extension is unsupported by the version of Excel that you are trying to open it with. Try the below methods to fix Excel cannot open the file issue. How to Fix “Excel Cannot Open the File” Error?