Spreadsheets are great for humans working with tabular data and awkward for applications that need structured data in a specific format — and sometimes a single spreadsheet is simply too large or mixed-purpose for the task at hand.
Breaking one large file into manageable pieces
A spreadsheet covering a full year, a full department, or a full product catalog is often more useful split into smaller files — by month, by team, by category. Split Excel Files divides a workbook by the criteria that actually matches how the data will be used.
Making spreadsheet data usable by code
Most applications and APIs expect structured data as JSON, not as spreadsheet rows and columns. Excel ⇄ JSON converts between the two directly, which is faster than writing a one-off script for what's usually a one-time data migration task.
Both process the spreadsheet entirely in your browser — no data is uploaded to convert or split a file.
