Cannot parse external workbook with port number in URL

[WillemJann]

XLParser is not able to parse the following formula:

='http://example.com:1234/test/[Book1.xlsx]Sheet1'!$A$1

This happens because of the port number :1234 at the end of the domain. If example.com:1234 is replaced with example.com the formula does parse.

[WillemJann]

It appears that the following formula is also valid in Excel:

='https://localhost:1234/test/[Book1.xlsx]Sheet1'!$A$1

XLParser v1.7.3 is not able to parse this formula.

[WillemJann]

Fixed in PR #207.