Opens XLSX workbook and reads its worksheets.

1. Xlsx Reader Online
2. Xlsx Reader Download
3. Xlsx Reader Javascript
4. Xlsx Reader Android
5. Xlsx Reader Free
6. Xlsx Reader App

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Example

Sheet contents

Sheets are loaded on-demand by sheet/3 and sheets/2.

The sheet contents is returned as a list of lists:

The behavior of the sheet parser can be customized for eachindividual sheet, see sheet/3.

Cell types

This library takes a best effort approach for determining cell types.In order of priority, the actual type of an XLSX cell value is determined using:

1. basic cell properties (e.g. boolean)
2. predefined known styles (e.g. default money/date formats)
3. introspection of the custom format string associated with the cell

Custom formats supported by default

• percentages
• ISO 8601 date/time (y-m-d)
• US date/time (m/d/y)
• European date/time (d/m/y)

Additional custom formats support

If the spreadsheet you need to process contains some unusual cell formatting, youmay provide hints to map format strings to a known cell type.

The hints are given as a list of {matcher, type} tuples. The matcher is either astring or regex to match against the custom format string. The supported types are:

• :string
• :number
• :percentage
• :date
• :time
• :date_time
• :unsupported (used for explicitly unsupported styles and formats)

Xlsx Reader Online

Example

To find out what custom formats are in use in the workbook, you can inspect package.workbook.custom_formats:

Types

Error tuple with message describing the cause of the error

List of cell values

List of rows

Sheet name

Source for the XLSX file: file system (:path) or in-memory (:binary)

Option to specify the XLSX file source

Xlsx Reader Download

Functions

Xlsx Reader Javascript

Loads all the sheets in the workbook concurrently.

Opens an XLSX file located on the file system (default) or from memory.

Xlsx Reader Android

Loads the sheet with the given name (see sheet_names/1)

Lists the names of the sheets in the package's workbook

Loads all the sheets in the workbook.

Specs

Error tuple with message describing the cause of the error

Specs

List of cell values

Specs

List of rows

Specs

Sheet name

Specs

Source for the XLSX file: file system (:path) or in-memory (:binary)

Specs

Option to specify the XLSX file source

Loads all the sheets in the workbook concurrently.

On success, returns {:ok, [{sheet_name, rows}, ...]}.

When processing files with multiple sheets, async_sheets/3 is ~3x faster than sheets/2but it comes with a caveat. async_sheets/3 uses Task.async_stream/3 under the hood and thusruns each concurrent task with a timeout. If you expect your dataset to be of a significant size,you may want to increase it from the default 10000ms (see 'Concurrency options' below).

If the order in which the sheets are returned is not relevant for your application, you canpass ordered: false (see 'Concurrency options' below) for a modest speed gain.

Filtering options

See sheets/2.

Sheet options

See sheet/2.

Concurrency options

• max_concurrency - maximum number of tasks to run at the same time (default: System.schedulers_online/0)
• ordered - maintain order consistent with sheet_names/1 (default: true)
• timeout - maximum duration in milliseconds to process a sheet (default: 10_000)

Specs

Opens an XLSX file located on the file system (default) or from memory.

Examples

Opening XLSX file on the file system

Opening XLSX file from memory

Options

• source: :path (on the file system, default) or :binary (in memory)
• supported_custom_formats: a list of {regex | string, type} tuples (see 'Additional custom formats support')

Specs

Loads the sheet with the given name (see sheet_names/1)

Options

• type_conversion - boolean (default: true)
• blank_value - placeholder value for empty cells (default: ')
• empty_rows - include empty rows (default: true)
• number_type - type used for numeric conversion :Integer, Decimal or Float (default: Float)
• skip_row?: function callback that determines if a row should be skipped. Takes precedence over blank_value and empty_rows. Defaults to nil (keeping the behaviour of blank_value and empty_rows).

The Decimal type requires the decimal library.

Examples

Skipping rows

When using the skip_row? callback, rows are ignored in the parser which is more memory efficient.

Specs

Lists the names of the sheets in the package's workbook

Specs

Loads all the sheets in the workbook.

On success, returns {:ok, [{sheet_name, rows}, ...]}.

Filtering options

Xlsx Reader Free

• only - include the sheets whose name matches the filter
• except - exclude the sheets whose name matches the filter

Xlsx Reader App

Sheets can filtered by name using:

• a string (e.g. 'Exact Match')
• a regex (e.g. ~r/Sheet +/)
• a list of string and/or regexes (e.g. ['Parameters', ~r/Sheet [12]/])

Sheet options

See sheet/2.