How to open a JSON file online
Three steps, a few seconds, no software.
Open your .STC file
Drop it on the box, choose it from your device, or paste the data straight in.
View the structure
Your .STC file opens as a tidy, foldable tree, with the exact line of any error pointed out.
Search, copy or download
Search keys and values, copy any path or value, switch to a table, or download a clean copy.
What is a .STC file?
The most common data format on the web.
An STC file is a legacy binary spreadsheet template from StarOffice and OpenOffice.org 1.x (late 1990s to 2004). Open it with LibreOffice Calc or Apache OpenOffice, both free. The modern replacement is .ots. StarOffice and IBM Lotus Symphony, also listed in older databases, are discontinued.
Programs that open .STC files
| Full name | StarOffice/OpenOffice.org Calc Spreadsheet Template |
|---|---|
| Developer | Star Division / Sun Microsystems (StarOffice); subsequently The Document Foundation / Apache Software Foundation |
| First released | late 1990s (StarOffice era) |
| Category | Text & Code |
| MIME type | application/vnd.sun.xml.calc.template |
Related viewers
Every viewer is free to use.
Frequently asked questions
Is my .STC file uploaded anywhere?
No. The file is opened directly from the copy you pick.
My .STC file is invalid. Can you fix it?
We show the exact line and column of the first error. For common problems like comments, trailing commas, single quotes or Python-style True/False/None, click Try to repair and download the fixed file.
How large can the file be?
Up to 50 MB. The tree only builds the branches you open, so even multi-megabyte files stay responsive.
What is JSONPath?
A path like $.orders[3].customer.email that points to one value inside the data. Click any node to see its path and copy it for code, jq or your API docs.
Can I see my data as a table?
Yes. Any array of objects can be shown in the Table view and downloaded as CSV.
Was this tool helpful?
Your rating helps us decide which tools to improve next.