UOS Converter

Convert Uniform Office spreadsheets (UOS) online for free


Drop or upload your .UOS file

How to convert your UOS file

  1. Click the "Select File" button above, and choose your UOS file.
  2. You'll see a preview.
  3. Click the "Convert file to..." button to save your file in the format you want.

Convert UOS to another file type

The converter easily converts your UOS spreadsheets to various formats - free and online. No WPS Office or or other Spreadsheet software needed.

  • UOS to XLS
  • UOS to XLSX
  • UOS to ODS
  • UOS to CSV
  • UOS to TSV
  • UOS to TAB
  • UOS to DIF
  • UOS to SLK
  • UOS to PXL
  • UOS to FODT
  • UOS to DOC
  • UOS to XLC

Convert a file to UOS

The converter also works in reverse, so you can convert other "XML Spreadsheet" formats to UOS without using software like WPS Office or a similar tool.

  • WQ1 to UOS
  • XLSM to UOS
  • WK3 to UOS
  • WB2 to UOS
  • WKS to UOS
  • XLSB to UOS
  • 123 to UOS
  • XLS to UOS
  • WB1 to UOS
  • XLSX to UOS
  • TAB to UOS
  • FH3 to UOS

About UOS files

A .UOS file is a Uniform Office Format (UOF) spreadsheet. It relies on an XML-based directory structure inside a compressed archive to store spreadsheet data, including rows, columns, formulas, text, and charts. The format was developed as a Chinese national standard (GB/T 20916-2007) to provide an alternative to proprietary office suites. It is primarily managed using WPS Office (formerly Kingsoft Office), Apache OpenOffice, and LibreOffice.

The main disadvantage of the .UOS format is its lack of global adoption. If you receive a .UOS file and attempt to open it in standard enterprise software like Microsoft Excel or Google Sheets, you will encounter "unsupported file format" errors. Even when opened in compatible open-source software, complex macros, pivot tables, or specific chart formatting often break. This causes severe workflow delays when sharing financial data or reports internationally.

To ensure your data is accessible, you must convert it. For full editing compatibility and formatting retention in Microsoft environments, convert to XLSX. If you only need to extract raw data for databases or programming scripts, convert to CSV (note that charts and formulas will be discarded). For a static, print-ready document, convert to PDF. Just drag and drop your file here on convert.guru to analyze and convert it - free, online, and without installing obscure software.

Use Convert.Guru to open and convert your UOS file.

Users also converted DOCUMENT FROM TEJESH files.


FAQ

If you want to convert UOS file to XLSM, XLSB, WK1 or WK3, you can use WPS Office or similar software from the "Spreadsheet Data Storage" category. In the File menu, look for Save As… or Export….

To convert NOTES or QPW files to UOS, try WPS Office or another comparable tool in the "Spreadsheet Data Storage" category.



The UOS Converter Story

The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our UOS converter.