Hello, I hope this message finds you well.
First, I want to thank you for https://www.openoffice.org/sc/excelfileformat.pdf I have found it invaluable. Thank you. I wanted to ask about a possible bug or submitting a patch to this document. I think I may have found an error in the size table in section 3.4.7. Specifically, tFunc and tFuncVar on page 43. The BIFF8 size is listed at 4 and 5 respectively. However, in section 3.7.1 and 3.7.2 only 3 bytes and 4 bytes respectively are documented. Indeed in practice as I write a parser, I can only read 4 bytes and not 5 for tFuncVar. If I missed something, I’d love to be corrected. If I did not, I’d love to contribute if you suggest. Thanks, — Jay Wren