* fix(xlsx): deal with chartsheets in workbooks
Signed-off-by: Cesar Berrospi Ramis <ceb@zurich.ibm.com>
* tests(xlsx): align test file names
Signed-off-by: Cesar Berrospi Ramis <ceb@zurich.ibm.com>
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Signed-off-by: Cesar Berrospi Ramis <ceb@zurich.ibm.com>