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xls: fix unsupported formula function panic#646

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mogery wants to merge 1 commit intotafia:masterfrom
firecrawl:fix/issue-646-xls-formula-panic
Open

xls: fix unsupported formula function panic#646
mogery wants to merge 1 commit intotafia:masterfrom
firecrawl:fix/issue-646-xls-formula-panic

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@mogery mogery commented Apr 25, 2026

Handle unsupported XLS function ids as formula parse errors instead of indexing past the function table, and cover issue with a valid minimal XLS fixture.

Example real file that causes a panic: https://www.wmfs.net/wp-content/uploads/2022/03/Waste-Contracts.xls

Patch written with GPT-5.5

@mogery mogery force-pushed the fix/issue-646-xls-formula-panic branch from 3d5420d to 26301e7 Compare April 25, 2026 11:22
Handle unsupported XLS function ids as formula parse errors instead of indexing past the function table, and cover issue 646 with a valid minimal XLS fixture.

Made-with: Cursor
@mogery mogery force-pushed the fix/issue-646-xls-formula-panic branch from 26301e7 to 4675775 Compare April 25, 2026 11:27
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mogery commented Apr 25, 2026

couple of force pushes to fix excel complaining about the fixture file

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