.FCSTD1 File Extension

FreeCAD Backup Document

Developer FreeCAD
4.0  |  3 Votes

What is an FCSTD1 file?

An FCSTD1 file is a backup of an .FCSTD CAD file created by FreeCAD, a free, cross-platform CAD design application. It contains the save state of an FCSTD file, which includes a 2D or 3D design and the geometry for the components. FCSTD1 files are helpful for saving a backup of a CAD document in case the program crashes or the user needs to revert to a previous save state of the document.

More Information

The FCSTD file is the native file format used to save designs made in FreeCAD. You can set the number of backup files that are automatically generated by FreeCAD in the program preferences. The first backup is stored in the FCSTD1 file, the second backup is saved in the FCSTD2 file, and so on. FCSTD1 files are often found accompanying the FCSTD file for which they contain a backup.

Open over 400 file formats with File Viewer Plus.Free Download

Programs that open FCSTD1 files


Verified by FileInfo.com

The FileInfo.com team has independently researched the FreeCAD Backup Document file format and Mac, Windows, and Linux apps listed on this page. Our goal is 100% accuracy and we only publish information about file types that we have verified.

If you would like to suggest any additions or updates to this page, please let us know.