What is et and ett ?

.ET File Extension

File type: Kingsoft Spreadsheets Document
Developer: Kingsoft Office
File description:
Document type created by Kingsoft Writer, a data processing tool that is part of the Kingsoft Office suite; similar to a Microsoft Excel document (.XLS or .XLSX file) and It features a calculator, graphing tools, and multiple other tools for complex data analysis; it supports more than 100 commonly used formulas, and a plethora of functions to aid in data analysis.
Kingsoft Spreadsheets documents can be converted to Microsoft Excel *.xls files in the software.

Programs that open .et files

.ETT File Extension

File type: Kingsoft Spreadsheets Template
Developer: Kingsoft Office
File description:
Document template created by Kingsoft Spreadsheets, a data analyze tool that is part of the Kingsoft Office suite; stores the page layout formatting and styles for a document and can be used for creating multiple Kingsoft Spreadsheets documents (.ET files) with the same look and feel.

Programs that open .ett files