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<PRONOM-Report xmlns="http://pronom.nationalarchives.gov.uk">
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      <FormatID>2534</FormatID>
      <FormatName>Calc602 Spreadsheet file</FormatName>
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      <FormatTypes>Text (Structured)</FormatTypes>
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      <FormatDescription>Files generated by Calc602, a spreadsheet programme made by Software602 which was released in 1988 by Czechoslovakian company 602 Svazarm (since the 1990s known as IT company Software602). Tc6 is the native file format for Calc602.The bak file backs up content, and has exactly the same internal signature as the tc6 file.</FormatDescription>
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      <ByteOrders>
      </ByteOrders>
      <ReleaseDate>
      </ReleaseDate>
      <WithdrawnDate>
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      <ProvenanceSourceID>242</ProvenanceSourceID>
      <ProvenanceName>The National Archives of the Czech Republic / The National Archives of the Czech Republic</ProvenanceName>
      <ProvenanceSourceDate>13 Jun 2022</ProvenanceSourceDate>
      <ProvenanceDescription>
      </ProvenanceDescription>
      <LastUpdatedDate>28 Oct 2022</LastUpdatedDate>
      <FormatNote>
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      <FormatRisk>
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      <TechnicalEnvironment>
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      <FileFormatIdentifier>
        <Identifier>fmt/1698</Identifier>
        <IdentifierType>PUID</IdentifierType>
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        <DeveloperName>
        </DeveloperName>
        <OrganisationName>Software602, Inc.</OrganisationName>
        <DeveloperCompoundName>Software602, Inc.</DeveloperCompoundName>
      </Developers>
      <Support>
        <SupportID>4</SupportID>
        <SupportName>
        </SupportName>
        <OrganisationName>Software602, Inc.</OrganisationName>
        <SupportCompoundName>Software602, Inc.</SupportCompoundName>
      </Support>
      <ExternalSignature>
        <ExternalSignatureID>3062</ExternalSignatureID>
        <Signature>bak</Signature>
        <SignatureType>File extension</SignatureType>
      </ExternalSignature>
      <ExternalSignature>
        <ExternalSignatureID>3063</ExternalSignatureID>
        <Signature>tc6</Signature>
        <SignatureType>File extension</SignatureType>
      </ExternalSignature>
      <InternalSignature>
        <SignatureID>2031</SignatureID>
        <SignatureName>Calc602 Spreadsheet file v.1.00</SignatureName>
        <SignatureNote>Absolute from beginning of file, magic bytes: Software602 Calc602 v.1.00 Tabulka</SignatureNote>
        <ByteSequence>
          <ByteSequenceID>2357</ByteSequenceID>
          <PositionType>Absolute from BOF</PositionType>
          <Offset>0</Offset>
          <MaxOffset>0</MaxOffset>
          <IndirectOffsetLocation>
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          <IndirectOffsetLength>
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          <Endianness>
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          <ByteSequenceValue>536F6674776172653630320D0A43616C6336303220762E312E303020546162756C6B61</ByteSequenceValue>
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      </InternalSignature>
      <RelatedFormat>
        <RelationshipType>Has priority over</RelationshipType>
        <RelatedFormatID>2623</RelatedFormatID>
        <RelatedFormatName>Calc602 Spreadsheet File</RelatedFormatName>
        <RelatedFormatVersion>
        </RelatedFormatVersion>
      </RelatedFormat>
    </FileFormat>
    <SearchCriteria>Criteria</SearchCriteria>
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</PRONOM-Report>
