DDC Converters 2.0 · what's new

What's new in DDC Converters 2.0

Six products, one line: RVT Converter, RVT to IFC, IFC to Excel, CAD Drawing to Excel, Data Viewer and Excel Add-in. No Revit or AutoCAD needed, and every file gets a report instead of guesses.

Download DDC Converters 2.0 Compare the six products

Windows 10/11 x64offlineinterface in 20 languages

504real drawings in the DWG test set
95.9 %of records converted over the test set
R12 to 2018+AutoCAD versions supported, AC1009 to AC1032

CAD Drawing to Excel

CAD Drawing to Excel 0.4.1: 504 real drawings, 95.9 % of records converted

CAD Drawing to Excel 0.4.1 reads AutoCAD files from R12 to 2018 and later, with no AutoCAD installed. The figure is the share of records converted across the whole test set; the report for each file says what was converted and what was not.

Formats: AC1009 to AC1032 (R12 to 2018+)
Test set: 504 real drawings
Records converted: 95.9 % over the test set
Writes: XLSX; optional CSV, JSONL, DXF, SVG
Damaged file: refused with a message, no partial table

DDC Viewer showing DDC-Sample-House.dwg: floor plans, section, elevations and schedules, with 99.8 % of records decoded — **Fig. 1.** DDC Viewer with DDC-Sample-House.dwg (AC1032), written by CAD Drawing to Excel 0.4.1: plans, sections, elevations and schedules on one sheet. The header shows 99.8 % of 8,435 records decoded, 13 not decoded.

Console run of CAD Drawing to Excel 0.4.1 on DDC-Sample-House.dwg: 8,435 records, 99.8 % decoded — **Fig. 2.** CAD Drawing to Excel 0.4.1 from the command line on DDC-Sample-House.dwg: 8,435 records, 99.8 % decoded, 13 records listed as unsupported.

A damaged file gets an error, not a half-filled table

Every run reports how many records were decoded, and lists the unsupported and refused ones, as in Fig. 2. A file that is not a valid DWG is refused outright and nothing is written for it.

DXF and SVG. Optional DXF and SVG output next to the workbook for checks and reuse.
Batch processing. Folders, queue, cancel. Results go into new folders and never overwrite earlier results.
Visual check. Open the result in DDC Viewer in your browser: layouts, layers, and the properties of each entity.

Products

Six products, one line

All six are part of DDC Converters 2.0 for Windows 10/11. Each product keeps its own version number, shown on its card: CAD Drawing to Excel 0.4.1 and Data Viewer 0.1.2 are part of DDC Converters 2.0 as well. Installers are on the download page.

DWG0.4.1

CAD Drawing to Excel

AutoCAD DWG drawings to structured Excel tables.

Writes
XLSX, CSV, JSONL, DXF, SVG

Status
Supported scope: some object types are not supported yet; the coverage report lists them per file. On a test set of 504 real drawings, 95.9 % of records were converted.
IFC2.0.0

IFC to Excel

IFC models to compact Excel workbooks with properties and quantities.

Writes
XLSX, JSON summary, optional JSONL

Status
Supported scope: IFCXML is not supported; computed properties are not qualified.
RVTRFA2.0.1

RVT Converter

Revit RVT/RFA to Excel, CSV, JSONL and geometry without Revit.

Writes
XLSX, CSV, JSONL, GLB geometry, IFC4

Status
Supported scope: Revit 2019 to 2027; elements with issues are listed in the report.
RVT2.0.1

RVT to IFC

Export Revit models to IFC2X3 / IFC4 for openBIM, standalone.

Writes
IFC2X3, IFC4

Status
Supported scope: check the IFC in your target software before production exchange.
DWGIFCRVTbundled

DDC Viewer

Local browser viewer for DWG, IFC and RVT results. Free.

Writes
PNG screenshots, JSON of selected elements

Status
Free, included with all converters.
XLSX2026.10.0

DDC Excel add-in

BIM data tools inside Excel: QTO, checks, dashboards, comparison.

Writes
Excel sheets and charts, JSON, XML, CSV

Status
Windows 10/11, Excel 2016 or newer. The download is not code-signed; Windows may ask you to confirm on first start.

IFC to Excel and RVT Converter

IFC to Excel window with two converted IFC files and the run summary: 2 converted, 0 failed — **Fig. 3.** IFC to Excel 2.0.0 after a run on two open sample models, AC20-FZK-Haus.ifc and AC-20-Smiley-West-10-Bldg.ifc: 2 converted, 0 skipped, 0 failed in 1 min 22 s. The workbooks are written beside the source files.

IFC to Excel 2.0.0: one workbook, objects first

Open IFC and IFCZIP models as compact Excel workbooks: objects, property sets, quantities, materials and spatial structure, one row per element.

A 10.9 MB model converts in about 42 s to a 9 MB workbook. Reads IFC2X3 and IFC4 as .ifc and .ifczip.

RVT Converter window with two written RVT files and the status bar: files done 2, failed 0 — **Fig. 4.** RVT Converter 2.0.1 after a run on two open Revit models (MIT licence), 41.4 MiB and 36.8 MiB: both written, 0 failed, 0 errors. Options in view: 3D + properties, element properties as JSONL, Export IFC4.

RVT Converter 2.0.1: Revit files without Revit

Read Revit RVT and RFA files without Autodesk Revit: element properties and categories to Excel, CSV or JSONL, plus geometry for review.

The report states the detected file version for each file; elements with issues are listed, never filled in.

DDC Viewer

Check the result in DDC Viewer before you trust the table

A local, offline viewer that opens in your browser. Check DWG layouts and layers, IFC and RVT models in 3D, and the properties of every element. Free, included with every converter.

DDC Viewer showing the AC20-FZK-Haus IFC model in 3D with the source file properties — **Fig. 5.** DDC Viewer with the open sample model AC20-FZK-Haus.ifc (IFC4): 108 elements, 100.0 % decoded. The right panel shows the source file, its size, SHA-256 and units.

3D navigation: Orbit, pan, zoom, view cube, perspective or orthographic, first-person walk.
Sections and isolation: Section plane and section box, hide, isolate, X-ray and colour by any property.
2D drawings: Model space and paper-space layouts, viewports, layers, linetypes, hatches and texts.
Properties: Grouped property panel with units; copy a value or the whole element as JSON.
Measurement: Distances and areas with snapping to endpoints.
No upload: One local folder, no server, no internet. Data never leaves your computer.

About dialog of DDC RVT to IFC 2.0.2 with the Community edition status — **Fig. 6.** About dialog of DDC RVT to IFC 2.0.2: version, publisher, EULA link and the Community edition status.

RVT to IFC 2.0.1: IFC2X3 or IFC4 from an RVT, without Revit

Export Revit RVT models to IFC2X3 or IFC4 for openBIM workflows, coordination and model checking, without opening Revit.

IFC2X3 and IFC4. Choose the schema your coordination or checking software expects.
Openings and relations. Openings and wall relations are written where the source is unambiguous; ambiguous cases are excluded explicitly.
Units checked. Metre and millimetre models are verified before writing.

Supported scope: check the IFC in your target software before production exchange. More on the RVT to IFC page.

Excel add-in

An Excel add-in for working with model data: import RVT, IFC and DWG models through the DDC converters, check parameters, build dashboards and compare versions. Windows 10/11, Excel 2016 or newer. The download is not code-signed; Windows may ask you to confirm on first start. Download and install steps are on the Excel add-in page.

Requirements

Requirements and editions

All products on this page run offline on Windows 10/11 64-bit. Linux and macOS builds are coming soon.

Licence terms are on the licence page: the Community version is for personal and research use; commercial use needs the licence, a one-time purchase with perpetual use and 12 months of updates.

Requirements, all six products

Windows 10 (22H2) or Windows 11, 64-bit
8 GB RAM; 16 GB for large models
1 GB free disk space plus space for results
Microsoft Excel or any XLSX viewer to open workbooks
Conversion works offline

Your files

Questions about your files?

Tell us which formats you work with. A file that does not convert is the most useful thing you can send; you decide what to share.

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