What files can I upload to AI Project Builder?

Two different lists are at work here, and it is worth being clear about which is which.

**Source files** are what you upload into the importer. They are temporary and private, and the list of formats we can read from them is deliberately wide.

**Project files** are what stays attached to your finished project and can be downloaded by anyone who can see it. That list is narrower, and it is unchanged by this feature.

A Word document is a good example: it is genuinely useful source material, so the importer reads it — but Provenfolio does not host .docx as a downloadable project attachment, so it cannot be kept with the finished project. The review screen tells you which of your files are in that position, by name.

Read in full, as source material

• CAD: STEP, STP, IGES, IGS — header metadata, originating CAD system, units, part names, assembly structure and component counts.
• 3D meshes: STL, OBJ, 3MF — triangle counts, bounding box, object counts.
• Documents: PDF, DOCX, TXT, MD, RTF — the text, page and word counts, and the title.
• Spreadsheets and data: XLSX, XLSM, CSV, TSV — sheet names, used ranges, row counts, column headers, a few sample rows, and units detected in the headers.
• Images: JPG, PNG, WEBP, GIF, BMP — dimensions and EXIF capture date. A small number are described by an image model.
• Archives: ZIP is opened and its contents examined as though you had uploaded them directly.

Recognised and indexed, but not opened

Recognised by name, folder and size. The contents were not opened. The name, the folder it sits in and its size are still evidence — a folder called "simulations" full of solver files says something true about the project even though nothing inside them was read.

• Native CAD part and assembly formats: SLDPRT, SLDASM, IPT, IAM, CATPart, PRT, ASM, F3D, FCStd, 3DM, X_T, SAT and similar.
• Drawings: DWG, DXF, SLDDRW, IDW.
• Legacy Office formats: DOC, XLS, PPT.
• Solver and simulation output: CDB, RST, ODB, INP, MSH, DAT.
• Archives we do not expand: RAR, 7Z, TAR, GZ. These are kept whole and can still be attached to the project.
• Any file too large to open. It keeps whatever its header told us and stays selectable as a project file.

Skipped

System or temporary files. Nothing was deleted and nothing was published.

• Operating-system files: .DS_Store, Thumbs.db, desktop.ini, and the contents of __MACOSX.
• Temporary and lock files: .tmp, .bak, .swp, .crdownload, and Office lock files beginning ~$.
• Version-control and tooling folders: .git, .svn, node_modules.

Needs attention

Could not be read. Review these before relying on the draft. This covers empty files, corrupt or truncated exports, password-protected archive entries and formats we do not recognise at all. Every one of them is listed by name with the reason — nothing is quietly dropped.

What can become a permanent project file

Exactly the formats the ordinary project uploader accepts, and nothing more. See "Supported file formats" for that list. Your plan's per-project file and 3D-model limits apply to your selection in the usual way, and the review screen shows the count against your allowance before you commit.