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Add support for XLSX files generated by Apache POI and Numbers #107

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Add support for XLSX files generated by Apache POI and Numbers #107

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8 changes: 7 additions & 1 deletion src/matchers/doc.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -84,7 +84,6 @@ fn msooxml(buf: &[u8]) -> Option<DocType> {
// file we have. Correct the mimetype with the registered ones:
// http://technet.microsoft.com/en-us/library/cc179224.aspx
start_offset += idx + 4 + 26;
check_msooml(buf, start_offset)?;

// OpenOffice/Libreoffice orders ZIP entry differently, so check the 4th file
start_offset += 26;
Expand All @@ -94,6 +93,13 @@ fn msooxml(buf: &[u8]) -> Option<DocType> {
None => return Some(DocType::OOXML),
};

// Check the 5th file, for Numbers and Apache POI sources
let idx = search(buf, start_offset, 6000);
match idx {
Some(idx) => start_offset += idx + 4 + 26,
None => return Some(DocType::OOXML),
};

let typo = check_msooml(buf, start_offset);
if typo.is_some() {
return typo;
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