Introduction

DVDAddin is a professional Excel add-in for construction professionals — translation, quantity surveying, schedule charting, mail-merge to Word, batch PDF printing, integrated AI assistant.

Video tutorial

Narrated in Vietnamese, with Vietnamese subtitles. Giới thiệu DVD Addin · 1 min 49 s · Download the video

Chapters (12)

1. Giới thiệu
2. Hai tab ribbon
3. Tiến độ
4. Bản vẽ DWG
5. Cắt thép
6. QA/QC
7. QS
8. Văn phòng
9. Trợ lý AI
10. An toàn dữ liệu
11. Bắt đầu thế nào
12. Kết thúc

Key features

1. Domain-specific translation

• Google Translate free (default).
• Gemini / ChatGPT / Groq / Cerebras — more accurate for construction terminology. The prompt is tuned for:
  • Rebar: starter bar, dowel bar, stirrup, rebar
  • Concrete: lean concrete, blinding concrete, construction joint
  • Pile foundations: bored pile, jacked-in pile, raft foundation
  • FIDIC / TCVN / ISO terms

2. Gantt chart drawing

• Auto-compute start/finish dates from project start + duration.
• Resource Histogram below.
• Critical path, % complete progress bars.
• Display options: start/finish dates, duration, milestones.

3. Mail merge to Word

• Source: Excel table.
• Destination: Word template with {{placeholder}}.
• Output: 1 Word/PDF file per data row.
• Use cases: acceptance reports, contracts, official letters, payslips.

4. Batch print + PDF export

• Loop a number range (Start..End or discrete list).
• Each iteration: change driver cell → recalculate → print/export PDF.
• Smart page break placement, AutoFilter refresh, auto-fit merged cells.
• Merge multiple PDFs into one final file (PdfSharp).

5. Integrated AI assistant

• AI Assistant: chat with AI to analyze tables, suggest formulas, auto-color/format.
• AI Solver: send a math problem image → AI solves it.
• AI Grammarly: fix spelling + grammar.
• AI Explain: explain complex Excel formulas.

6. General utilities

• Auto-numbering (1, 1.1, 1.1.1, ...).
• Merge / unmerge / Copy-Paste visible cells.
• Remove Vietnamese diacritics (file/folder names).
• Audio transcription (speech-to-text).
• OCR images / PDFs.
• Unlock protected sheets (your own files or with permission).

Offline guide

This whole site is also available as a PDF book you can read offline — with a table of contents and every picture, in Vietnamese and English. It comes with the installer: after setup it is in C:\DVDAddin\HuongDan (open it with Help ▸ User guide on the ribbon, or from Start → DVDAddin Excel → User Guide (PDF)), together with 4 practice workbooks in the ThucHanh folder.

System requirements

Requirement	Minimum version
Windows	Windows 10 (64-bit recommended)
Microsoft Excel	2016, 2019, 2021, 2024, or Microsoft 365
.NET Desktop Runtime	8.0 (downloaded and installed by the installer if missing)
Disk space	~50 MB
Internet	Needed for license activation, AI translate, AI Assistant

Next step

→ Install DVDAddin