What is the ET file format?
An .et file is a spreadsheet file created by the WPS Spreadsheet program from Kingsoft software - the extension stands for "electronic table." The .et file is used to store financial data, such as balance sheets, expenses, and invoices, organized in rows and columns. It also supports charts and formulas within the workbook.
Multiple .et files can be created from within WPS Spreadsheet or by using .ett template files. .ett templates cover various document types, including invoices, trackers, budgets, calendars, finance sheets, and general business files.
Modern .et files use a ZIP-based OOXML container - sharing the same PK magic bytes as an XLSX workbook - with internal XML describing worksheets, styles, and shared strings. Older Kingsoft spreadsheets used a proprietary binary layout with an OLE compound-file header, the same container as legacy .xls files, so the internal structure can differ depending on the WPS Office version that created the file. The .et format can be exported to .xlsx or .xls directly from WPS Office, and a range of online converters support the format as well.
Security & safety
RISK: LOWAn .et is a data file, but like any spreadsheet it can contain macros/embedded objects, so treat .et files from unknown senders with the same caution as an Excel workbook - don't enable macros you don't trust. Note that WPS Office (Kingsoft) has historically shown ads/upsell prompts in the free version; download it only from the official wps.com site to avoid bundled or fake installers.
Format details
in a nutshellPrograms that open ET files
Windows2 apps
WPS Office (Spreadsheet)
Freemium Install WPS Office and double-click the .et - it opens natively; File > Save As to export .xlsx/.csv.
Microsoft Excel (after conversion)
Paid Excel can't open .et directly - first Save As .xlsx in WPS (or via an online converter), then open in Excel. 
macOS1 app
Linux1 app
WPS Office for Linux
Freemium Install the WPS Office .deb/.rpm and open the .et; export to .xlsx/.ods. 
Android1 app
Online ET-to-XLSX converters
Free Upload the .et and download .xlsx/.csv when you don't want to install WPS (avoid for confidential data). Technical details
deep spec| Name meaning | "ET" abbreviates "electronic table"; the WPS Office Chinese name is WPS 表格 (Biǎogé) |
| Developer | Kingsoft Office Software (WPS Office) |
| Primary application | WPS Spreadsheet, part of the WPS Office suite |
| MIME type | application/wps-office.et |
| Modern container format | ZIP/OOXML - structurally identical container to .xlsx |
| Magic bytes (modern) | 50 4B 03 04 ("PK") at byte offset 0 |
| Legacy container format | Proprietary OLE Compound Document binary, similar to pre-2007 .xls |
| Magic bytes (legacy) | D0 CF 11 E0 (OLE compound document header) at byte offset 0 |
| Internal structure (modern) | workbook.xml, sheet XML files, styles.xml, and sharedStrings.xml packed inside a ZIP archive |
| Content type identifier | [Content_Types].xml inside the ZIP distinguishes WPS Spreadsheet content from Excel content |
| Template extension | .ett (ET Template) for reusable spreadsheet templates |
| Formula compatibility | Formula syntax and function names largely compatible with Microsoft Excel |
| Chart support | Embedded charts within the workbook, rendered natively in WPS Spreadsheet |
| Export targets | .xlsx, .xls, .pdf, and .csv directly from WPS Office |
| Platform support | Windows, macOS, Linux, Android, and iOS via WPS Office applications |
| Released | Kingsoft Spreadsheets / WPS Office (China: 'WPS 表格'); .et = 'electronic table' |
| Specification | www.wps.com |
ET conversions
Community Q&A
asked by usersNo questions yet - be the first to ask about ET files.
