OpenAnyFile
What is a .x_t file?
Parasolid Text is a 3D/CAD format developed by Siemens Digital Industries, first released in 1988. It is usually created by SOLIDWORKS, NX, Onshape.
Parasolid is the geometry kernel under SOLIDWORKS and NX, so x_t moves between them with no translation loss.
File details
| Full name | Parasolid Text |
|---|---|
| Category | 3D & CAD |
| MIME type | text/plain |
| Developer | Siemens Digital Industries |
| Introduced | 1988 |
| Opens with | Text reader |
| Uploaded? | No — read locally in your browser |
How to open a .x_t file
OpenAnyFile routes .x_t files to its text reader, which shows the full text.
- Drop your .x_t file on the box above, click it to choose the file, or paste it with Ctrl+V.
- The real format is detected from the file's first bytes — not just its name.
- The file opens in the text reader.
- Use fullscreen for a closer look, check its checksums, or download it back unchanged.
What works — and what does not
Works
Viewing and inspecting: the full text. Size, type, signature and checksums are always shown.
Does not work
Editing and saving back. OpenAnyFile is a viewer, not an editor — for changes you still need the original app.
Is it safe to open a .x_t file online?
Here, yes — because nothing is uploaded. Most "online viewers" send your file to their server. OpenAnyFile reads it with your browser's File API and decodes it on your own device, so there is no copy anywhere else. You can check: open your browser's network tab while opening a file — no upload appears.
Questions about .x_t files
Can I open a .x_t file without installing software?
Yes. OpenAnyFile opens .x_t files in your browser using its text reader. You get the full text, with nothing installed and no account.
How do I know a file is really a .x_t file?
Check its first bytes instead of its name. This format has no fixed signature, so the detected type and the readable content are the best clues. OpenAnyFile shows the detected type, so a renamed file is easy to spot.
Is my .x_t file uploaded anywhere?
No. The file is read locally by your browser and never sent to a server — it even works offline once the page has loaded.
Does it work on phones?
Yes — on Android and iPhone, in any modern browser. You can also install OpenAnyFile as an app.
Related formats
Other formats from the same family:
Format facts checked and page updated on September 25, 2026.