Class: FileFormatUtil - Aspose.Cells for Node.js via Java

Methods

static

detectFileFormat(stream) → FileFormatInfo

Detects and returns the information about a format of an excel stored in a stream.

Parameter

Name	Type	Optional	Description
stream	InputStream		The stream

Returns: FileFormatInfo A FileFormatInfo object that contains the detected information.

static

detectFileFormat(stream, password) → FileFormatInfo

Detects and returns the information about a format of an excel stored in a stream.

Parameters

Name	Type	Optional	Description
stream	InputStream
password	String		The password for encrypted ooxml files.

Returns: FileFormatInfo A FileFormatInfo object that contains the detected information.

static

detectFileFormat(filePath) → FileFormatInfo

Detects and returns the information about a format of an excel stored in a file.

Parameter

Name	Type	Optional	Description
filePath	String		The file path.

Returns: FileFormatInfo A FileFormatInfo object that contains the detected information.

static

detectFileFormat(filePath, password) → FileFormatInfo

Detects and returns the information about a format of an excel stored in a file.

Parameters

Name	Type	Optional	Description
filePath	String		The file path.
password	String		The password for encrypted ooxml files.

Returns: FileFormatInfo A FileFormatInfo object that contains the detected information.

static

detectFileFormatFromStream(stream, callback) → FileFormatInfo

Detects and returns the information about a format of an excel stored in a stream.

Example

var aspose = aspose || {};
aspose.cells = require("aspose.cells");
var fs = require("fs");
var readStream = fs.createReadStream("Book2.xlsx");
aspose.cells.FileFormatUtil.detectFileFormatFromStream(readStream, function(result, err) {
if (!err) {
console.log("detect result: " + result.getFileFormatType());
}
});

Parameters

Name	Type	Optional	Description
stream	ReadableStream		The stream
callback	Callback		The callback function

Returns: FileFormatInfo A FileFormatInfo object that contains the detected information.

static

extensionToSaveFormat(extension) → Number

Converts a file name extension into a SaveFormat value. If the extension cannot be recognized, returns SaveFormat.UNKNOWN.

Parameter

Name	Type	Optional	Description
extension	String		The file extension. Can be with or without a leading dot. Case-insensitive.

Returns: Number A SaveFormat value.

static

fileFormatToSaveFormat(format) → Number

Converting file format to save format.

Parameter

Name	Type	Optional	Description
format	Number		FileFormatType

Returns: Number A SaveFormat value.

static

isTemplateFormat(extension) → boolean

Returns true if the extension is .xlt, .xltX, .xltm,.ots.

Parameter

Name	Type	Optional	Description
extension	String

Returns: boolean

static

loadFormatToExtension(loadFormat) → String

Converts a load format enumerated value into a file extension. If it can not be converted, returns null.

Parameter

Name	Type	Optional	Description
loadFormat	Number		LoadFormat

Returns: String The returned extension is a lower-case string with a leading dot.

static

loadFormatToSaveFormat(loadFormat) → Number

Converts a LoadFormat value to a SaveFormat value if possible.

Parameter

Name	Type	Optional	Description
loadFormat	Number		LoadFormat

Returns: Number A SaveFormat value. The save format.

static

saveFormatToExtension(format) → String

Converts a save format enumerated value into a file extension.

Parameter

Name	Type	Optional	Description
format	Number		SaveFormat

Returns: String The returned extension is a lower-case string with a leading dot.

static

saveFormatToLoadFormat(saveFormat) → Number

Converts a SaveFormat value to a LoadFormat value if possible.

Parameter

Name	Type	Optional	Description
saveFormat	Number		SaveFormat

Returns: Number A LoadFormat value. The load format

static

verifyPassword(stream, password) → boolean

Detects and returns the information about a format of an excel stored in a stream.

Parameters

Name	Type	Optional	Description
stream	InputStream
password	String		The password for encrypted ooxml files.

Returns: boolean Returns whether the password is corrected.