18 Excel processing skills for Claude Code & Codex. XML direct ops for large files — 4-10x faster. Available in Chinese and English.
Skill Claude CodeCodex
Scan all date columns in Excel and convert datetime values to user-specified text format (yyyymmdd, yyyy-mm-dd, yyyy/mm/dd, yyyy年mm月dd日, or any custom combination). Supports three output positions: insert new column on left, insert new column on right, or replace original column. New column headers can be customized…
Skill Claude CodeCodex
Deduplicate Excel data by key column — keep first occurrence, delete subsequent duplicates. First calls excel-find-duplicates for read-only scanning to find duplicate row numbers, then confirms and deletes via XML direct ops (bypassing openpyxl, 10x faster). Format fully preserved (only rows removed, kept rows…
Skill Claude CodeCodex
A tool for deleting rows or columns from Excel spreadsheets. It checks whether formulas depend on the items being removed and supports deletion by row number, column name, or position.
Skill Claude CodeCodex
A tool for filtering Excel spreadsheet rows by conditions such as matching text, dates, ranges, or empty cells. It can either keep matching rows and remove the rest, or remove matching rows and keep the rest.
Skill Claude CodeCodex
A read-only tool for finding duplicate Excel rows using one column or a combination of columns. It reports the duplicate Excel row numbers and does not change the workbook.
Skill Claude CodeCodex
A procedure for changing Excel spreadsheet formatting, including fonts, alignment, colors, sizes, column widths, and row heights.
Skill Claude CodeCodex
An Excel worksheet view setting that keeps selected rows or columns visible while you scroll. It can freeze the top row, first column, both, or a chosen position, and can remove the setting.
Skill Claude CodeCodex
A tool for inserting rows or columns into Excel spreadsheets. It can place them beside a chosen column or above or below a chosen row, with optional names and content.
Skill Claude CodeCodex
Batch replace column values by mapping table. User provides mapping relationships (spoken in conversation / pasted list / mapping file), and the skill auto-matches and replaces corresponding values in the target column. Values not in the mapping table are preserved as-is.…
Skill Claude CodeCodex
A tool for combining multiple Excel files with the same column structure into one file.
Skill Claude CodeCodex
A coordinator for tasks involving Excel files and other spreadsheets. It breaks a request into smaller operations, selects the relevant spreadsheet tools, reports the planned changes, asks for confirmation, and summarizes the results.
Skill Claude CodeCodex
A tool for cleaning Excel column values with regular expressions, which are patterns used to find text.
Skill Claude CodeCodex
A controlled way to replace values in Excel workbooks, including whole columns, rows, selected cells, formulas, or Python-based transformations. It first identifies the requested range and requires confirmation before overwriting content.
Skill Claude CodeCodex
Excel safe editing five-step method (Backup→Scout→Plan→Execute→Verify). When users need to do structural editing on existing Excel files (insert columns, delete columns, modify data, format conversion, etc.), use this skill to ensure safe operations and avoid data corruption. Suitable for large files (>10MB or >10K…
Skill Claude CodeCodex
Pre-operation reconnaissance — read-only scan of Excel files to locate columns relevant to user needs, output a structured scout report for user confirmation. Makes no modifications. When users describe complex Excel operation needs but haven't specified column numbers/names/current values, use this skill first to…
Skill Claude CodeCodex
An Excel data-sorting tool that arranges rows by one or more columns. It supports ascending or descending order for numbers, dates, and text.
Skill Claude CodeCodex
A tool for splitting one large Excel table into separate files based on the values in a chosen column.
Skill Claude CodeCodex
A read-only checker for Excel files that produces a data-quality report without changing the original file. It looks for missing values, unusual numbers, inconsistent formats or types, duplicate rows, and formula columns.
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: