What is an ET File?

How to Open, Edit, & Convert ET Files

Picture of the ET file icon

A file with the ET file extension is a Kingsoft Spreadsheets file. Much like Microsoft's XLSX format, ET files support charts and formulas and stores data in rows and columns of cells. ETT files are similar but are template files used to create multiple similar .ET files.

The Easiteach software also uses ET files, but as Easiteach Lesson files for storing animations, images, text, and other teaching resources.

Some ET files may instead be ETwin Electrodos de Tierra Project Data files.

How To Open an ET File

ET files that are Kingsoft Spreadsheets files can be opened with the free Kingsoft Spreadsheets program. You'll have to convert the ET file if you want to use it in Microsoft Excel or another spreadsheet program. Skip down to the next section to learn how.

Easiteach Lesson files are opened using RM Education's Easiteach software.

ETwin Electrodos de Tierra opens ET files that are used by that program. The website is in Spanish but you can use this English translation to read the text.

Note: EST files share a couple of the same file extension letters as ET files, but they don't have anything to do with each other. EST files are either Streets & Tips Map files or Construction Cost Estimate files.

If you find that an application on your PC does try to open the ET file but it's the wrong application or if you would rather have another installed program open ET files, see my How To Change the Default Program for a Specific File Extension guide for making that change in Windows.

How To Convert an ET File

ET spreadsheet files can be converted to XLSX and XLS using Kingsoft Spreadsheets. Just open the file and then use the Save As menu to select an Excel format to convert it to.

I don't know of any way to convert ET files that are used by the other programs mentioned above, but if the file can be converted in any way, it's likely done through the same software that can open it, similar to how Kingsoft Spreadsheets converts files.

More Help With ET Files

See Get More Help for information about contacting me on social networks or via email, posting on tech support forums, and more. Let me know what kinds of problems you're having with opening or using the ET file and I'll see what I can do to help.