Split Spreadsheet
Split a spreadsheet into multiple files — by row count or by a column’s value.
Everything runs in your browser — your file never leaves your device.
Tip: splitting by a column value is great for breaking a big list into per-category files.
About Split Spreadsheet
Split Spreadsheet breaks one file into many, right in your browser. Upload an XLSX, XLS, CSV or ODS file and split it either by row count — every N data rows become a new file — or by column value, which groups rows into one file per distinct value in a column you choose.
Each resulting part is listed with its own preview, and you can download a single part or grab everything at once as a ZIP. An option repeats the header row in every part, so each split file remains usable on its own.
Splitting by column value is the standout: turn one big list into per-country, per-category or per-owner files in seconds. A sanity cap warns you before a split would create an unreasonable number of files, and since the work happens client-side, your data never leaves your device.
How to use Split Spreadsheet
- Upload the spreadsheet you want to split (XLSX, XLS, CSV or ODS).
- Choose the mode: by row count, or by the values of a column.
- Set the rows per file, or pick the column to group by.
- Enable “Repeat the header in every file” so each part stands alone.
- Preview the parts, then download one file or all of them as a ZIP.