<?xml version="1.0" encoding="utf-8"?>
<PRONOM-Report xmlns="http://pronom.nationalarchives.gov.uk">
  <report_format_detail>
    <FileFormat>
      <FormatID>894</FormatID>
      <FormatName>Microsoft Works Spreadsheet</FormatName>
      <FormatVersion>1-5</FormatVersion>
      <FormatAliases>
      </FormatAliases>
      <FormatFamilies>
      </FormatFamilies>
      <FormatTypes>Spreadsheet</FormatTypes>
      <FormatDisclosure>
      </FormatDisclosure>
      <FormatDescription>Microsoft Works is a discontinued office software suite developed by Microsoft and available from 1987-2009. It was often available bundled with Windows computers. This format was a forerunner to other spreadsheet editors with grid of cells arranged in rows and numbers. Versions 1-5 were binary files before the .xlr compound files were developed from version 6 onwards.</FormatDescription>
      <BinaryFileFormat>Text</BinaryFileFormat>
      <ByteOrders>
      </ByteOrders>
      <ReleaseDate>
      </ReleaseDate>
      <WithdrawnDate>
      </WithdrawnDate>
      <ProvenanceSourceID>1</ProvenanceSourceID>
      <ProvenanceName>Digital Preservation Department / The National Archives</ProvenanceName>
      <ProvenanceSourceDate>28 Sep 2009</ProvenanceSourceDate>
      <ProvenanceDescription>11/2023 (v.115)- Description updated. Modified the offset values in the internal signature from null to 0 as part of a project to match PRONOM data with the xsd standard. Internally researched.</ProvenanceDescription>
      <LastUpdatedDate>14 Nov 2023</LastUpdatedDate>
      <FormatNote>https://en.wikipedia.org/wiki/Microsoft_Works

http://justsolve.archiveteam.org/wiki/Microsoft_Works_Spreadsheet</FormatNote>
      <FormatRisk>
      </FormatRisk>
      <TechnicalEnvironment>
      </TechnicalEnvironment>
      <FileFormatIdentifier>
        <Identifier>fmt/166</Identifier>
        <IdentifierType>PUID</IdentifierType>
      </FileFormatIdentifier>
      <Developers>
        <DeveloperID>93</DeveloperID>
        <DeveloperName>
        </DeveloperName>
        <OrganisationName>Microsoft Corporation</OrganisationName>
        <DeveloperCompoundName>Microsoft Corporation</DeveloperCompoundName>
      </Developers>
      <ExternalSignature>
        <ExternalSignatureID>882</ExternalSignatureID>
        <Signature>wks</Signature>
        <SignatureType>File extension</SignatureType>
      </ExternalSignature>
      <InternalSignature>
        <SignatureID>729</SignatureID>
        <SignatureName>Microsoft Works Spreadsheet 1-5</SignatureName>
        <SignatureNote>BOF: (.|ÿ)......T.
EOF: ....</SignatureNote>
        <ByteSequence>
          <ByteSequenceID>917</ByteSequenceID>
          <PositionType>Absolute from BOF</PositionType>
          <Offset>0</Offset>
          <MaxOffset>0</MaxOffset>
          <IndirectOffsetLocation>
          </IndirectOffsetLocation>
          <IndirectOffsetLength>
          </IndirectOffsetLength>
          <Endianness>
          </Endianness>
          <ByteSequenceValue>(00|FF)0002000404055402</ByteSequenceValue>
        </ByteSequence>
        <ByteSequence>
          <ByteSequenceID>918</ByteSequenceID>
          <PositionType>Absolute from EOF</PositionType>
          <Offset>0</Offset>
          <MaxOffset>0</MaxOffset>
          <IndirectOffsetLocation>
          </IndirectOffsetLocation>
          <IndirectOffsetLength>
          </IndirectOffsetLength>
          <Endianness>
          </Endianness>
          <ByteSequenceValue>01000000</ByteSequenceValue>
        </ByteSequence>
      </InternalSignature>
      <RelatedFormat>
        <RelationshipType>Has priority over</RelationshipType>
        <RelatedFormatID>169</RelatedFormatID>
        <RelatedFormatName>Lotus 1-2-3 Worksheet</RelatedFormatName>
        <RelatedFormatVersion>1.0</RelatedFormatVersion>
      </RelatedFormat>
    </FileFormat>
    <SearchCriteria>Criteria</SearchCriteria>
  </report_format_detail>
</PRONOM-Report>
