Open SDC files in your browser
StarOffice's spreadsheet, before OpenOffice.org. Open one right here, every sheet. Nothing leaves your device.
Or drop it anywhere on this page
What you'll see
Your workbook opens at the sheet it was saved on, drawn as its app draws it, with its tabs along the bottom.
- Every sheet • Formats, merges and frozen panes
- Show formulas • Behind every value
- Show as a table • Sort, filter and search
- Export • Save a sheet or all of them as CSV
About SDC
StarCalc was the spreadsheet of StarOffice, Star Division's office suite, and saved .sdc files through StarOffice 5.2 in 2000. After Sun Microsystems bought Star Division, StarCalc became OpenOffice.org Calc and then LibreOffice Calc, which save OpenDocument spreadsheets.
An SDC is a Compound File holding StarCalc's own records: each sheet's cells with their values, text and formulas, cell styles, column widths and charts. For years no app read it, until LibreOffice could again.
Filepeek reads the spreadsheet with libstaroffice, the open source reader LibreOffice uses, compiled to WebAssembly, and draws every sheet in a grid of its own with its tabs along the bottom. Show formulas reveals what's behind each value, Show as a table sorts, filters and searches a sheet, and Export saves sheets as CSV.
StarCalc spreadsheet
.sdc
Format
- MIME type
- application/vnd.stardivision.calc
- Made by
- Star Division, then Sun Microsystems
Inside the file
- Sheets
- Each with its cells
- Cells
- Values, text and formulas
- Inside
- A Compound File of StarCalc's records
- Written by
- StarOffice 3 to 5.2
Opens in every browser
Filepeek opens SDC files in Chrome, Edge, Firefox and Safari. On their own, browsers only download them.
- YouChromeOpens through Filepeek
- YouEdgeOpens through Filepeek
- YouFirefoxOpens through Filepeek
- YouSafariOpens through Filepeek
Apps that open SDC
- WindowsLibreOffice Calc opens it
- MacLibreOffice Calc opens it
- iPhone and iPadNo app built in opens it
- AndroidNo app built in opens it
Questions
How do I open an SDC file?
Drop it on this page or choose Peek an SDC. Every sheet opens with its tabs along the bottom.
Can I get it into Excel?
Choose Export, then save a sheet or all of them as CSV, which Excel opens. LibreOffice Calc opens SDC files and saves them as XLSX.
Are the formulas kept?
Yes. Values show as StarCalc saved them, and Show formulas reveals the formula behind each one.