Many importers limit the file size or the rows per upload. Spreadsheet applications also have row and memory limits. A big export may also need to be sent to several people, one part each.
Choose a size such as 5,000 rows per file. Every part repeats the header row, so each file can be imported on its own. The parts come in one ZIP.
Pick a column such as Region. You get one file per distinct value, named after it. Up to 500 groups are allowed, so an ID column is the wrong choice.
The last part is usually shorter. Open the first and last file to confirm the header and the count of rows.
The file is read and split in your browser. Nothing is uploaded.
Open the free CSV and Excel ToolkitPlanned $19 one-time offline pack: Offline pack in preparation. Not yet for sale.