feat(write): sheet layout — header style, frozen panes, auto-filter, merged cells - #91

Merged

vaceslav merged 10 commits into

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feat/write-layout

Oct 4, 2026

Commits on Oct 4, 2026

docs(write): spec — merges declared by writer.Merge(rows, columns); the column limit is the existing one
vaceslav
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0a1b0b2
docs(write): plan for styled export part 2 — sheet layout
vaceslav
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4fee46e
feat(write): SheetOptions — a styled header row and frozen panes for xlsx and ods
vaceslav
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1f16250
feat(write): auto-filter on the header row for xlsx and ods
vaceslav
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99d362d
feat(write): merged cells — declared before the top-left cell, covered positions skipped and written by the writer; csv
vaceslav
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f2c352e
feat(write): xlsx merged cells
vaceslav
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53ca265
feat(write): ods merged cells and runs of empty cells as one repeated cell
vaceslav
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97663a3
test(write): a laid-out workbook opens in LibreOffice and reads back; document sheet layout
vaceslav
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845f99e
fix(write): bordered merged ranges keep their style on covered xlsx cells; merge tests for early-ending rows, fills; docs; one null check per cell
vaceslav
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bad71a2
fix(write): ods frozen panes — declare xmlns:ooo in settings.xml so LibreOffice reads the view settings; resave interop test
vaceslav
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59613b8