Want to convert Excel to JSON array?
Try Withdata Data File Converter, a desktop Excel to JSON converter for Windows, MacOS, and Linux, Convert Excel to JSON array, Easy and Fast.
- Can run in GUI mode, Step by Step, just a few mouse clicks.
- Can run in Command line, for Scheduled Tasks and Streams.
- Convert files locally and privately, avoid uploading JSON file(s) to online services.
Convert Excel to JSON array
Choose Excel file -> Set target JSON array file -> Convert Excel to JSON array
Click “Start a New Convert” at task dialog.
then show the wizard.
Select source/target file type.
1. Open a Excel file.
The Excel file content:
2. Config target JSON array file.
3. Set rows options.
4. Convert Excel to JSON array.
See JSON array file
Convert Excel to JSON array in command line
Save “Excel to JSON array” session, then you can:
- Convert Excel to JSON array in Windows command line.
- Convert Excel to JSON array in Linux command line.
- Convert Excel to JSON array in macOS command line.
Set scheduled tasks for converting Excel to JSON array
You can schedule and automate this converting task by:
- Save session and create .bat (Windows) or .sh (Linux/macOS) file for “Excel to JSON array” conversion.
- Set scheduled task for “Excel to JSON array” conversion.
FAQ
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EXCEL → JSON Array reference
Type mapping
| Value kind | in EXCEL | in JSON Array |
|---|---|---|
| Int | 1234 (a real numeric cell) | 1234 (number) |
| Bigint | 9007199254740993 (exact only while the cell stays text) | 9007199254740993 |
| Decimal | 1234.56 (numeric cell, format controls the displayed decimals) | 1234.56 (number) |
| Float | 1.234E+10 (numeric cell) | 1.234e10 (number) |
| Text | text cell; leading zeros survive only if the column is text | "text" (string) |
| Long text | text cell; wraps inside the cell rather than the row | "multi-line\ntext" (escaped newline inside a string) |
| Date | a serial number plus a date cell format | "2026-09-18" (string) |
| Datetime | a serial number plus a date-time cell format | "2026-09-18T14:30:00Z" (string) |
| Binary | not representable as data | "base64:..." (string) |
| Boolean | TRUE / FALSE (a real boolean cell) | true / false (boolean) |
| JSON | a text cell; the quotes are part of the value | nested object or array, kept as structure |
Dialect differences
Both EXCEL and JSON Array are file formats, so what differs below is how each one chooses to represent a value.
| Property | in EXCEL | in JSON Array |
|---|---|---|
| identifiers | Not applicable; a cell holds exactly one value | Double quotes; backslash escapes |
| dates | Stored as a serial number; only the cell format makes it lo... | No date type: dates arrive as strings and the reader must p... |
| binary | Only as text or an embedded object, not as a data column | Not supported natively - base64 inside a string |
| separator | Cells, not delimiters | Braces and commas |
| encoding | UTF-8 internally, declared in the package | UTF-8 by definition |
| typing | Real cell types: text, number, date, boolean, error | string, number, boolean, null, object, array - no date type |
| shape | Multiple sheets, each a flat grid | Nested objects and arrays |
| ceiling | 1,048,576 rows x 16,384 columns per sheet; 255 sheets per w... | Whole document is usually parsed into memory |
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