You don't necessarily need Microsoft Excel to work with an .xlsx file Reviewed by Ryan Perian This article explains what XLSX files are, how to open them, and which programs are able to convert ...

Then, while trying to open an Excel workbook, try to make it ‘read only’ to recover its entire content. Follow the steps- Open the Excel workbook in ‘read-only’ mode > try copying its ...

Here are the steps to convert an XLS or XLSX file to GPX format using this free software: Download RouteConverter. Launch this portable application. Open an XLS or XLSX file. Edit the data if needed.