Windows API Viewer for MS Excel x64

Windows API Viewer for MS Excel x64 by Dennis M Wallentin

Windows API Viewer for MS Excel x64 is a specialized Excel-based tool for VBA developers who need to call the Windows API from 64-bit Office. It provides a curated, searchable catalog of 64-bit–safe declarations, constants, types, and structures adapted for VBA7, helping you avoid common pitfalls with PtrSafe, LongPtr, and handle types. From within Excel, you can quickly look up a function by name or DLL, preview the declaration, and copy or insert it directly into your VBA module. Optional templates for conditional compilation make it easier to support both 32-bit and 64-bit Office in the same codebase. The library emphasizes correctness and clarity, reducing the trial-and-error typically involved in migrating legacy 32-bit API calls.

Key features:

• Curated 64-bit–ready Windows API declarations for VBA7 (Declare PtrSafe, LongPtr, handles, enums, and user-defined types).
• Fast search and filtering by function name, DLL, category, or keyword.
• One-click copy or insertion into the active VBA module, with optional 32/64-bit conditional templates.
• Helpful parameter notes to aid implementation and reduce debugging time.
• Built to run inside Excel—no external IDE or separate runtime required.

Typical use cases:

• Migrating legacy 32-bit VBA projects to 64-bit Office.
• Adding new Windows API capabilities to Excel solutions without handcrafting declarations.
• Verifying API signatures before deployment.

Requirements:

• Microsoft Excel for Windows, 64-bit (VBA7).
• Windows 10/11 or compatible.
• Macro-enabled environment; trust access to the VBA project object model may be required for insertion features.

Note: Features and compatibility may vary by version.

Windows API Viewer for MS Excel x64 is developed by Dennis M Wallentin. The most popular version of this product among our users is 1.0. The name of the program executable file is WinAPIExcelp.exe.

You can check Bytescout XLS Viewer, XlsX Viewer, Free Excel Viewer and other related programs like SDF Viewer at the "download" section.