Issues

• read_xlsx / COPY … (FORMAT xlsx) ignore the 1904 date system (dates 1462 days early)

  duckdb/duckdb-excel#104 · Filter by author seanspicer opened on Oct 6, 2026

• read_xlsx never returns on a truncated file that ends inside a zip record

  duckdb/duckdb-excel#102 · Filter by author kinghuang opened on Sep 29, 2026

• Memory leak in zip_file.cpp

  duckdb/duckdb-excel#96 · Filter by author thomas-0816 opened on Sep 6, 2026

• Binder Error when sheet name includes some special characters

  duckdb/duckdb-excel#95 · Filter by author billwallis opened on Jul 14, 2026

• no sheets found in xlsx file

  duckdb/duckdb-excel#89 · Filter by author bugsbugsbux opened on May 1, 2026

• feature request: skip_rows_top=n, skip_rows_bottom=n

  duckdb/duckdb-excel#88 · Filter by author bugsbugsbux opened on May 1, 2026

• duckdb GlobFiles API has been chanced since 1.5.0.

  duckdb/duckdb-excel#87 · Filter by author toge opened on Mar 12, 2026
  1

• Support forward slash in windows paths

  duckdb/duckdb-excel#85 · Filter by author grantith opened on Feb 25, 2026

• Feature request: Allow flexible schema overrides for specific column(s) when reading data

  duckdb/duckdb-excel#84 · Filter by author HeWhoHeWho opened on Jan 29, 2026
  1

• Feature request: Allow batch operation/processing for reading multiple files / worksheets at once

  duckdb/duckdb-excel#83 · Filter by author HeWhoHeWho opened on Jan 25, 2026

• KeyError: "There is no item named 'xl/sharedStrings.xml' in the archive"

  duckdb/duckdb-excel#82 · Filter by author yangg opened on Jan 16, 2026
  1

• empty_as_varchar fails to work when cell borders are present

  duckdb/duckdb-excel#77 · Filter by author davidliudev opened on Dec 24, 2025

• all_varchar = true converts boolean values to numbers before returning them as strings

  duckdb/duckdb-excel#76 · Filter by author naiyerasif opened on Dec 16, 2025
  1

• read_xlsx: Could not convert string 'https://static.inaturalist.org/sounds/637821.mp3?1681086265' to DOUBLE

  duckdb/duckdb-excel#75 · Filter by author humphd opened on Dec 6, 2025
  1

• Anyone else feels like the Header parameter should be set to true by default for exports to excel files

  duckdb/duckdb-excel#72 · Filter by author infobeltech opened on Oct 17, 2025
  2

• Type inference fails when first data row contains empty cells, causing data loss

  duckdb/duckdb-excel#69 · Filter by author booandrew opened on Aug 28, 2025

• False Exception when writing to XLSX

  duckdb/duckdb-excel#68 · Filter by author HeWhoHeWho opened on Aug 21, 2025

• Add filename as parameter to read_xlsx

  duckdb/duckdb-excel#67 · Filter by author CristianAven opened on Aug 19, 2025

• Excel export: missing values

  duckdb/duckdb-excel#66 · Filter by author teklinp opened on Aug 8, 2025
  4

• read_xlsx column names with new line

  duckdb/duckdb-excel#59 · Filter by author dareklima opened on Jul 4, 2025

• XLSXCellPos::GetColumnName off-by-one error

  duckdb/duckdb-excel#58 · Filter by author genericallyterrible opened on Jul 4, 2025

• 404 trying to install excel Extension

  duckdb/duckdb-excel#56 · Filter by author bregyp opened on Jun 30, 2025

• "Could not move file: The process cannot access the file because it is being used by another process." (works on retry)

  duckdb/duckdb-excel#55 · Filter by author fdcastel opened on Jun 26, 2025
  2

• Sql function to get sheet_names

  duckdb/duckdb-excel#54 · Filter by author ekanna opened on Jun 24, 2025
  1

• "IO Error: Failed to close entry" when COPYing from PostgreSQL to EXCEL

  duckdb/duckdb-excel#53 · Filter by author FlipperPA opened on Jun 21, 2025
  9