vaadin / vaadin/spreadsheet

Spreadsheet gets stuck loading some files

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Dominant language
Java
Stars
50
Forks
53
Avg merge
1d 21h
Merged PRs (30d)
1

Description

I tested the file from https://vaadin.com/forum/thread/17814053/hello-i-have-problem-with-certain-xlsx-files-when-read-it-s-infinite-and and the spreadsheet seems indeed to get stuck(I let it run for 15+ minutes) - yet printing the content out with POI (4.1.0) works without issues. I tested with Spreadsheets 2.1 and 3.0.0.alpha1. No exceptions were thrown.

Fully working example attached.
sheet-test.zip

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Research direction

Start by reproducing the hang with the attached sheet-test.zip file and compare the behavior with Apache POI 4.1.0, which can print the file successfully. Trace the spreadsheet loading path for this XLSX and determine what completion should look like: loading finishes without exceptions or an indefinite wait.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
backend
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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