What is an ET file?
The .ET file extension is most commonly a WPS Office spreadsheet file created by Kingsoft WPS Office. These files store rows, columns, formulas, and charts, similar to a Microsoft Excel document. Sometimes, an .ET file can also be an Easiteach Lesson File created by Research Machines, which contains interactive educational content.
How to open ET files?
Because an .ET file can have different internal structures, opening it depends on its exact type. viewer.online/et analyzes .ET files to identify their exact format and creator software, shows which programs can open the file, and usually previews it. If it is a spreadsheet, you can open it with WPS Office.
Best practices and troubleshooting
If you need to share your spreadsheet with Microsoft Excel users, it is best to convert it. We recommend file conversion to sensible target formats on convert.guru. You can easily convert an .ET file to .XLSX or .CSV for maximum compatibility across different spreadsheet applications.
Software and tools
The main tool for these files is WPS Office Spreadsheets. Educational users will use Easiteach Next Generation. Advanced users can use file inspection tools to see if the file uses a binary structure or a modern ZIP structure.
Summary
viewer.online/et directly opens and previews .ET files in the browser, eliminating the need to install software or troubleshoot compatibility issues.