refer to xl/_rels/workbook.xml.rel
Merge branch 'master' of https://github.com/kokardy/xlsx into kokardy-master
Remove TODO
- Make several small stylistic clean-ups.
- Test using workbook.xml.rels file for sheet dereferencing in simplest case.
Test that we can deal with arbitrarily named sheet files within the XLSX file.
go fmt
Add testrels.xlsx file used to test new worksheet mapping functions.
Remove issue17.xlsx file as test cases use embedded XML instead.
Merge pull request #1 from tealeg/master

Merge pull request