Recommended test
Round-trip a disposable project and verify that the reopened copy retains more than its visible geometry.
- Create a small building, add a model note and capture a fresh measurement in a Planner page.
- Return to Default view, restore the full model and save a versioned .strek file.
- Confirm the file exists, then open it in a separate workspace session and wait for loading to finish.
- Check a known span, object groups, the model note and the captured Planner page against the original.
What the project file is for
.strek is Autostrek’s working project format. It packages structured project state with embedded GLB scene data, allowing the application to restore a project for continued work. Treat it as the editable master file; a .glb export is a separate delivery format.
The saved project includes supported model groups, current Build Generator settings, model notes, appearance, camera and Planner state. Not every open tool or reusable library travels with it; see what saves with your project.
Save deliberately
- Finish the active placement or edit and inspect the committed model.
- If you have been working on Planner pages, return to Default view. Restore hidden groups and the full timeline state when saving a complete master model.
- Open the save/export controls and choose Save project. Save needs a model and is unavailable while another save/export operation is busy.
- Complete the system save dialog if the browser provides one; otherwise check the browser download location.
- Confirm the resulting
.strekfile exists and keep it in a known project folder.
Use names such as garage-r01.strek and garage-r02-openings.strek for meaningful milestones. Save before replacing a generated model, running an advanced edit or loading another file. The browser may offer to replace an existing file or add a suffix to a download, so check the actual filename.
Choose compression
Compress GLB is enabled by default in the save controls. It compresses the embedded scene data with gzip while keeping the project as a .strek document. Loading decompresses it automatically; there is no need to unzip the file yourself. Compression changes storage, not the intended model dimensions.
Open and verify
Choose the .strek file in the load control and allow the scene to finish decoding. Loading replaces the current model, so preserve unsaved work first. Check a known dimension, object groups, model notes and each important Planner page.
Use a separate workspace session for a strong restore check. Measurements or quote work still visible in the original session can give a misleading impression of what the file contains. Supported older project versions are migrated during loading; invalid or unsupported files can report parsing, validation or migration errors. Follow save/load troubleshooting if this happens.
Project file versus export
Reopen .strek when you expect to edit in Autostrek. Export .glb when another viewer or 3D workflow needs model geometry. Keep both if the model is an important deliverable: the project file preserves editing context while GLB provides interchange.