Forcing Garbage Collection

Q: Which Excel VBA pattern ranks just above this one at #207?

The pattern one rank above is “Building Excel Files with C#”. If your use case overlaps, compare both before committing.

The Problem (Q-score 4, ranked #208th of 303 in the Excel VBA archive)

The scenario as originally posted in 2009

Is there a way to force garbage collection in VBA/Excel 2000?

This question refers to the Macro language in Excel.
Not using VB .NET to manipulate Excel. So GC.collect() won’t work

Why community consensus is tight on this one

Across 303 Excel VBA entries in the archive, the accepted answer here holds niche answer (below median) status — meaning voters are unusually aligned on the right fix.

The Verified Solution — niche answer (below median) (+9)

Advisory answer — community consensus with reference links

Note: the verified answer below is a reference / advisory response rather than a copy-ready snippet.

You cannot take advantage of garbage collection provided by the .NET Framework when using straight VBA. Perhaps this article by Eric Lippert will be helpful

When to Use It — vintage (14+ years old, pre-2013)

Ranked #208th in its category — specialized fit

This pattern sits in the 97% tail relative to the top answer. Reach for it when your scenario closely matches the question title; otherwise browse the Excel VBA archive for a higher-consensus alternative.

What changed between 2009 and 2026

The answer is 17 years old. The Excel VBA object model has been stable across Office 2013, 2016, 2019, 2021, 365, and 2024/2026 LTSC, so the pattern still compiles. Changes that might affect you: 64-bit API declarations (use PtrSafe), blocked macros in downloaded files (Mark-of-the-Web), and the shift toward Office Scripts for web-first workflows.

help
Frequently Asked Questions

This is a below-median answer — when does it still fit?
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Answer score +9 vs the Excel VBA archive median ~4; this entry is niche. The score plus 4 supporting upvotes on the question itself (+4) means the asker and 8 subsequent voters all validated the approach.

This answer links out — what are the reference links worth following?
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Read the first external link for the canonical reference, then search this archive for a top-10 entry in the same category — advisory answers are best paired with a ranked code snippet to close the loop.

This answer is 17 years old. Is it still relevant in 2026?
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Published 2009, which is 17 year(s) before today’s Office 2026 build. The Excel VBA object model has had no breaking changes in that window. Three things to re-test: (1) blocked macros on downloaded files (Mark-of-the-Web), (2) 64-bit API declarations (PtrSafe, LongPtr), (3) any shift toward Office Scripts for web scenarios.

Which Excel VBA pattern ranks just above this one at #207?
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The pattern one rank above is “Building Excel Files with C#”. If your use case overlaps, compare both before committing.

Data source: Community-verified Q&A snapshot. Q-score 4, Answer-score 9, original post 2009, ranked #208th of 303 in the Excel VBA archive. Last regenerated April 14, 2026.