ET to OTS Converter

The ET file extension denotes a spreadsheet created by WPS Office (formerly Kingsoft Office), specifically within the WPS Spreadsheets application. It serves as the proprietary binary or XML-based container for the suite, functionally analogous to Microsoft's XLS format. The file encapsulates cell data, complex formulas, chart objects, and layout formatting. While historically proprietary, modern iterations often adhere to structures compatible with Microsoft Object Linking and Embedding (OLE) specifications to ensure interoperability.

ET files are natively supported by the WPS Office suite, available on Windows, Linux, macOS, and Android. While Microsoft Excel does not natively render ET files without conversion, users can convert them to XLS/XLSX using WPS or utilize generic file viewers. LibreOffice Calc provides partial support for importing Kingsoft formats via specific import filters.

The OpenDocument Spreadsheet Template (OTS) is a file format defined by the OASIS OpenDocument standard (ISO/IEC 26300) specifically for creating reusable spreadsheet blueprints. Structurally identical to the ODS format, it uses ZIP compression to package XML content and styles. The primary technical distinction lies in the file header flags, which instruct the software to open a new, untitled instance of the spreadsheet rather than modifying the original template file, preserving the source data structure and formulas.

OTS files function seamlessly with ODF-compliant software including LibreOffice Calc and Apache OpenOffice across all major operating systems. While Microsoft Excel can open these files, users may need to manually select the file type in the open dialog. Double-clicking an OTS file typically launches a new workbook based on the template rather than opening the template file itself for editing.