Sheet is incorrectly shown as 1x1

[Keno]

In this Excel file from https://journals.plos.org/ploscompbiol/article?id=10.1371/journal.pcbi.1005697#sec020, all sheets are shown as 1x1, even though they are 17x16:

MUestimates_all_locations_1.xlsx

[felipenoris]

@Keno, please see #216 (comment).
The read_worksheet_dimension function reads the dimension tag from the worksheet XML file. This tag is optional (see section 18.3.1.35 - dimension, from the specs). It is not guaranteed that the software writing the workbook fills this attribute, and it may also fill it incorrectly.

In the case of the attached file, the tag reads:

<dimension ref="A1"/>

Hence the result 1x1, as far as I could check your issue.

[felipenoris]

@Keno, if you just open this file using Microsoft Excel and save it, the tag will be fixed: <dimension ref="A1:P17"/>.