Worksheet/Table/Column[Span] in XML reader

[SlowFox71]

This is:

- [X] a bug report
- [X] a feature request
- [ ] **not** a usage question (ask them on https://stackoverflow.com/questions/tagged/phpspreadsheet or https://gitter.im/PHPOffice/PhpSpreadsheet)

What is the expected behavior?

Apply to the appropriate number of columns if the attribute ss:Span is given.

ss:Span simply instructs excel to repeat the definition the given number of times. will thus in total affect 4 columns. The attached example uses this to set colum widhts for A to D (this example is not hand-crafted but was created exactly like this by Excel).
test.txt

What is the current behavior?

ss:Span is ignored and applied to a single column

What features do you think are causing the issue

• Reader
• Writer
• Styles
• Data Validations
• Formula Calculations
• Charts
• AutoFilter
• Form Elements

Does an issue affect all spreadsheet file formats? If not, which formats are affected?

XML format only

Which versions of PhpSpreadsheet and PHP are affected?

all versions

[oleibman]

Thanks for the sample, I understand the request now. I am able to include this request in my PR.