https://bugs.documentfoundation.org/show_bug.cgi?id=170287
Bug ID: 170287
Summary: FILESAVE: XLS -> XLSX font name exceeds max length of
31
Product: LibreOffice
Version: 26.8.0.0 alpha0+ master
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: medium
Component: Calc
Assignee: [email protected]
Reporter: [email protected]
Description:
Open the attached XLS file and save it as XLSX in LibreOffice. Excel throws an
error when opening the resulting file.
OOXML Validator gives the below error
```
{
"Description": "The attribute 'val' has invalid value
'Cumberland;Cumberland AMT;Courier New;Cousine;Liberation Mono;Nimbus Mono
L;DejaVu Sans Mono;Bitstream Vera Sans Mono;Courier;Lucida Sans
Typewriter;Lucida Typewriter;Monaco;Monospaced'. The actual length is greater
than the MaxLength value. The length must be smaller than or equal to 31.",
"Path": {
"Namespaces": {},
"XPath": "/x:styleSheet[1]/x:fonts[1]/x:font[5]/x:name[1]",
"PartUri": "/xl/styles.xml"
},
"Id": "Sem_AttributeValueDataTypeDetailed",
"ErrorType": "Schema"
}
```
The font name exceeds maximum length of 31. But I couldn't find where this is
specified. Schema related to font element is specified in (ISO-IEC-29500-1
2016, 18.8.22). But there is no limit on font-name length.
Limiting the font-name to 31 in `styles.xml` fixes the issue
Steps to Reproduce:
1. Open the attached XLS file
2. Save it as XLSX
3. Open the resulting file in Excel
Actual Results:
Excel throws an error when opening the file
Expected Results:
Excel opens the file without any problem
Reproducible: Always
User Profile Reset: Yes
Additional Info:
Version: 25.8.3.2 (X86_64)
Build ID: 8ca8d55c161d602844f5428fa4b58097424e324e
CPU threads: 22; OS: Linux 6.12; UI render: default; VCL: gtk3
Locale: en-IN (en_IN); UI: en-US
Calc: threaded
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