ET to XLSM 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 XLSM format is a macro-enabled spreadsheet file created by Microsoft Excel 2007 and later versions, utilizing the Office Open XML (OOXML) standard (ISO/IEC 29500). Unlike the standard XLSX format, XLSM files store embedded macros written in Visual Basic for Applications (VBA), allowing for automation and complex scripting within the workbook. The file structure relies on ZIP compression to contain XML documents for data, styles, and macro binary parts (vbaProject.bin), presenting a security risk that often requires user authorization to execute active content.

XLSM files open natively in Microsoft Excel (2007+) on Windows and macOS, which provides full VBA execution support. For non-Microsoft environments, LibreOffice Calc, OpenOffice Calc, and WPS Office can open these files and view data, though VBA macro execution compatibility varies significantly. Google Sheets can import XLSM data but strips the VBA macros, converting the file to its native format without automation features.