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fix(xlsx): speed up by detecting the true last non-empty row/column (#2404)

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* Update msexcel_backend.py

Fix #2307, Follow the instruction of https://github.com/docling-project/docling/issues/2307#issuecomment-3327248503.

Signed-off-by: Richard (Huangrui) Chu <65276824+HuangruiChu@users.noreply.github.com>

* Update msexcel_backend.py

Fix error

Signed-off-by: Richard (Huangrui) Chu <65276824+HuangruiChu@users.noreply.github.com>

* Fix linting issues

Signed-off-by: Richard (Huangrui) Chu <65276824+HuangruiChu@users.noreply.github.com>

* Add test files and data (Signed-off-by: Huangrui Chu <huangrui.chu.1999@gmail.com>)

Signed-off-by: Richard (Huangrui) Chu <65276824+HuangruiChu@users.noreply.github.com>

* resolve conflict with test_backend_msexecl; update the boundary

Signed-off-by: Richard (Huangrui) Chu <65276824+HuangruiChu@users.noreply.github.com>

* chore(xlsx): use a dataclass to represent a bounding rectangle in worksheets

Signed-off-by: Cesar Berrospi Ramis <ceb@zurich.ibm.com>

* chore(xlsx): increase parsing speed by iterating on 'sheet._cells'

Increase the parsing speed of the spreadsheet backend by iterating on 'sheets._cells'
since this is proportional to the number of created cells.
Rename test file to align it to other test files.

Signed-off-by: Cesar Berrospi Ramis <ceb@zurich.ibm.com>

---------

Signed-off-by: Richard (Huangrui) Chu <65276824+HuangruiChu@users.noreply.github.com>
Signed-off-by: Cesar Berrospi Ramis <ceb@zurich.ibm.com>
Co-authored-by: Cesar Berrospi Ramis <ceb@zurich.ibm.com>
This commit is contained in:
Richard (Huangrui) Chu
2025-10-21 02:08:20 -04:00
committed by GitHub
parent 657ce8b01c
commit b66624bfff
6 changed files with 4019 additions and 27 deletions
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53
tests/data/groundtruth/docling_v2/xlsx_04_inflated.xlsx.md vendored Normal file
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| first | second | third |
|----------|-----------|---------|
| 1 | 5 | 9 |
| 2 | 4 | 6 |
| 3 | 3 | 3 |
| 4 | 2 | 0 |
| 5 | 1 | -3 |
| 6 | 0 | -6 |
| col-1 | col-2 | col-3 | col-4 |
|---------|---------|---------|---------|
| 1 | 2 | 3 | 4 |
| 2 | 4 | 6 | 8 |
| 3 | 6 | 9 | 12 |
| 4 | 8 | 12 | 16 |
| 5 | 10 | 15 | 20 |
| 6 | 12 | 18 | 24 |
| 7 | 14 | 21 | 28 |
| 8 | 16 | 24 | 32 |
| col-1 | col-2 | col-3 |
|---------|---------|---------|
| 1 | 2 | 3 |
| 2 | 4 | 6 |
| 3 | 6 | 9 |
| 4 | 8 | 12 |
| col-1 | col-2 | col-3 |
|---------|---------|---------|
| 1 | 2 | 3 |
| 2 | 4 | 6 |
| 3 | 6 | 9 |
| 4 | 8 | 12 |
| first | header | header |
|----------|----------|----------|
| first | second | third |
| 1 | 2 | 3 |
| 3 | 4 | 5 |
| 3 | 6 | 7 |
| 8 | 9 | 9 |
| 10 | 9 | 9 |
| first (f) | header (f) | header (f) |
|-------------|--------------|--------------|
| first (f) | second | third |
| 1 | 2 | 3 |
| 3 | 4 | 5 |
| 3 | 6 | 7 |
| 8 | 9 | 9 |
| 10 | 9 | 9 |
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