1.7 KiB
Data Types
The raw value is stored in the v field, interpreted based on the t field.
Type b is the Boolean type. v is interpreted according to JS truth tables.
Type e is the Error type. v holds the number and w holds the common name:
| Value | Error Meaning |
|---|---|
0x00 |
#NULL! |
0x07 |
#DIV/0! |
0x0F |
#VALUE! |
0x17 |
#REF! |
0x1D |
#NAME? |
0x24 |
#NUM! |
0x2A |
#N/A |
0x2B |
#GETTING_DATA |
Type n is the Number type. This includes all forms of data that Excel stores
as numbers, such as dates/times and Boolean fields. Excel exclusively uses data
that can be fit in an IEEE754 floating point number, just like JS Number, so the
v field holds the raw number. The w field holds formatted text. Dates are
stored as numbers by default and converted with XLSX.SSF.parse_date_code.
Type d is the Date type, generated only when the option cellDates is passed.
Since JSON does not have a natural Date type, parsers are generally expected to
store ISO 8601 Date strings like you would get from date.toISOString(). On
the other hand, writers and exporters should be able to handle date strings and
JS Date objects. Note that Excel disregards timezone modifiers and treats all
dates in the local timezone. js-xlsx does not correct for this error.
Type s is the String type. v should be explicitly stored as a string to
avoid possible confusion.
Type z represents blank stub cells. These do not have any data or type, and
are not processed by any of the core library functions. By default these cells
will not be generated; the parser sheetStubs option must be set to true.