search feature
--HG-- branch : 3.2
I was working with openpyxl and had a use case for a search feature. Since I found that openpyxl didnt have one I wrote one.
The testcases admittedly need to be improved; to effectively test the feature I need a worksheet with data prepopulated and I'm not sure how to do that with pytest. Other than that, I have tested this pretty extensively on my own worksheets. I hope it is well received. Any feedback is appreciated.