I was using stackoverflow for a while now and it helped me very often. Now I have a problem I couldn't solve myself or through searching. I'm trying to output my excel file generated by openpyxl in browser as I was doing it with phpexcel. The method appears to be the same, but I only get broken file. My code looks like this:
from openpyxl.workbook import Workbook
from openpyxl.writer.excel import ExcelWriter
from openpyxl.writer.excel import save_virtual_workbook
from openpyxl.cell import get_column_letter
from StringIO import StringIO
print 'Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'
print 'Content-Disposition: attachment;filename="results.xlsx"'
print 'Cache-Control: max-age=0\n'
output = StringIO()
wb = Workbook()
ws = wb.worksheets[0]
ws.cell('A1').value = 3.14
wb.save(output)
print output.getvalue()
#print save_virtual_workbook(wb)
I use the version 1.5.8 and python 2.7. None of the approaches works. When I just use it from desktop and not browser it works flawlessly. I would be very thankful for help.
P.S. please don't tell me that using other language or program would be easier. I need to solve this with python.
Writing the xlsx output to disk and then serving it up via Apache worked perfectly, but putting it out directly caused errors in Excel and other issues.
I added a couple of extra steps and made one minor change to your code:
buffer=output.getvalue()
In the HTTP headers:
print "Content-Length: " + str(len(buffer))
And used write() instead of print() to push the buffer into the standard output stream:
stdout.write(buffer)