Forum Discussion

vhnl's avatar
vhnl
Copper Contributor
Oct 29, 2026

Excel 365 removes VBA projects (vbaProject.bin) from all .xlsm files on Windows 11

Hello Microsoft Tech Community, We are the technical support team at NEODIMO, a company that develops Excel-based financial management solutions using VBA. We are investigating an unusual issue aff...
developer
excel
Macros and VBA
office 365
AndreasKiller's avatar
AndreasKiller
Copper Contributor
Oct 31, 2026

Hi,

Answers to the questions:

  1. Many things, there might be a corrupted module, an invalid structure inside the bin...
  2. For this specific error as you described, IMHO a 100% no.
  3. Yes, export all modules on a machine that does not show the behaviour. Open the file on the machine that shows the error and let Excel repair the file. Check the references, maybe you can see an issue at that point. Import one module after the other and click Debug / Compile (it is mandatory and I assume that Option Explicit is a the top of every module). In many cases the error is gone after this procedure.
  4. Yes, I can read a bin file without Office at all and e.g. extract the code.

There is no general procedure to solve this issue, in some cases you have to rebuild the whole file. If you send me the download link to the file I can take a look.

Andreas.