Format
Microsoft Excel 2.x Worksheet (xls)
Summary
- Name
- Microsoft Excel 2.x Worksheet (xls)
- Version
- 2
- Identifiers
-
- MIME: application/vnd.ms-excel
- Apple Uniform Type Identifier: com.microsoft.excel.xls
- PUID: fmt/55
- Format type
- Spreadsheet
- Disclosure
- None
- Description
- The Binary Interchange File Format (BIFF) is a spreadsheet file format developed by Microsoft. BIFF 2 is the native file format of Microsoft Excel 2.1 for Windows. The format is proprietary and Microsoft does not make details of its structure public. The information contained here is derived primarily from OpenOffice.org's reverse-engineered documentation of the format, and should not therefore be regarded as definitive. BIFF is a stream based format, and a BIFF 2 file comprises a single worksheet stream, containing a Beginning of File (BOF) record, followed by a series of Worksheet records, and terminated by an End of File (EOF) record.
- File extensions
-
xls - Source
- Digital Preservation Department / The National Archives
- Developed by
- Microsoft Corporation
- Supported by
- Microsoft Corporation
Relationships
- Is previous version of
- Is supertype of
Internal signatures
BIFF 2 Worksheet
- Note
- BIFF2: BOF hex 0900. record length hex 0400, BIFF version (not used), filetype=worksheet=1000
Byte sequences
- Min Frag Length
- Absolute from BOF
- Offset
- 0
- Max offset
- None
- Byte Sequence
09000400{2}1000- Endianness
- None
Changelog
-
Updated in V69
- Release date
- 19 July 2013
Microsoft Excel Worksheet 2.x: Changed version from 2.1. Improved signature submitted by Georgia Technology Research Institute.