The compiled .exe file is significantly larger than the original workbook because it is a self-contained application that bundles several essential components:
- A secure loader compatible with various versions of Excel and Windows.
- A complete Unicode-aware runtime engine.
- The proprietary VBA compiler and interpreter.
- Multiple layers of anti-piracy and code protection.
To reduce the size of the EXE file:
- Use UPX Compression: UPX is a free, open-source EXE compressor available at upx.github.io. Compressing the EXE can significantly reduce its size. However, we strongly recommend code signing any compressed EXE files, as some antivirus programs may otherwise trigger false positives.
- Disable Formula Protection: If your application does not rely on sensitive formulas, you can disable formula protection to slightly reduce the final EXE file size.
