`FileNotFound` when opening `.xlsm`

[dotcarmen]

not entirely sure how to repro tbh, and due to circumstances i cannot obtain the backtrace to know exactly why this error is happening. however, the panic is happening at src/structs/raw/raw_file.rs:76:63.

the xlsm file definitely exists (since i'm opening the file via reader::xlsx::read_file and the File::open there isn't failing) so it seems to be due to an entry missing from the zip that this library code expects to exist

[MathNya]

@dotcarmen
Thank you for your report.
If possible, could you please submit the Excel file you were using when the error occurred?

[dotcarmen]

I cannot, as it contains proprietary and sensitive data. I've switched to using calamine instead, which is able to handle my file without a hitch

[c-git]

@dotcarmen is it possible to reproduce the error with a sanitized version of the file so to fix the error for future users?

[dotcarmen]

i really cannot 😅 however, after littering printlns into the library code, i was able to get a poor man's stacktrace:

• xlsx::reader::read
• xlsx::reader::read_reader
• RawWorksheet::read
• RawWorksheet::read_rawrelationships (recurses once or twice)
• RawRelationship::set_attributes (also recurses)
• RawFile::set_attributes

specifically, the panic occurs in the unwrap from setting attributes from this line