XS3 Converter

Extract text from XESS worksheets (XS3)


Drop or upload your .XS3 file
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How to extract text from your XS3 file

  1. Click the "Select File" button above, and choose your XS3 file.
  2. You’ll see a preview, if available.
  3. Click the "Convert file to..." button to extract text information.

Convert XS3 to another file type

To convert XS3 worksheets to another format, you need Xess or other Spreadsheet software.

Convert a file to XS3

To convert other file formats to the "Legacy Spreadsheet File" file type, you need software like Xess or a similar tool.


About XS3 files

An .XS3 file is a legacy spreadsheet file created by Xess, an extensible X-Windows real-time spreadsheet designed for Linux, UNIX, VMS, and Windows NT. Developed by Applied Information Systems, Inc. (AIS), Xess was widely used in scientific and engineering environments for managing complex data. The biggest drawback is that the Xess software is discontinued and virtually impossible to run on modern Windows or macOS systems. Sharing an .XS3 file today means the recipient will not be able to open it, as standard applications like Microsoft Excel or Google Sheets do not support the format natively. You should convert .XS3 files to standard formats like CSV for raw data extraction, TXT for text parsing, or PDF for document archiving. Since Xess files are technically encoded text files, plain text conversion retains the core data, though formulas and macros (like xsBasic scripts) will be lost. Because it is a discontinued and specialized format, standard online converters often fail to process it.

Convert.Guru analyzes your XS3 file, detects the exact format, and lets you read the text inside.

Users also converted XS4, XS5 and WG2 files.


FAQ

If you want to convert XS3 file to , you can use Xess or similar software from the "Spreadsheet Data Storage" category. In the File menu, look for Save As… or Export….

To convert files to XS3, try Xess or another comparable tool in the "Spreadsheet Data Storage" category.



The XS3 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 XS3 converter.