[python-win32] Writing to Excel performance

2008-12-12 Thread Dominick Lauzon
Hi, I have large matrices of data to push to excel and I find the writing of data to excel to be excessively slow (cell by cell method) even if the Visible is to False. Right now I reverted back to a 2 step CSV - Import to Excel but it is far from ideal. Is there any trick to

Re: [python-win32] Writing to Excel performance

2008-12-12 Thread Dahlstrom, Roger
-bounces+rdahlstrom=directedge@python.org [mailto:python-win32-bounces+rdahlstrom=directedge@python.org] On Behalf Of Dominick Lauzon Sent: Friday, December 12, 2008 9:54 AM To: python-win32@python.org Subject: [python-win32] Writing to Excel performance Hi, I have large matrices of data

Re: [python-win32] Writing to Excel performance

2008-12-12 Thread Tim Golden
Dominick Lauzon wrote: I have large matrices of data to push to excel and I find the writing of data to excel to be excessively slow (cell by cell method) even if the Visible is to False. Right now I reverted back to a 2 step CSV - Import to Excel but it is far from ideal. Is there any

Re: [python-win32] Writing to Excel performance

2008-12-12 Thread Tim Roberts
Dahlstrom, Roger wrote: Couple of tricks I've used with some success... 1. If this is data only, and not formulas, you can write the data as an html table, but name the file something.xls - Excel will open it natively. 2. If you need special formatting or formulas, you can write the data

Re: [python-win32] Writing to Excel performance

2008-12-12 Thread Dahlstrom, Roger
[mailto:python-win32-bounces+rdahlstrom=directedge@python.org] On Behalf Of Tim Roberts Sent: Friday, December 12, 2008 1:24 PM To: Python-Win32 List Subject: Re: [python-win32] Writing to Excel performance Dahlstrom, Roger wrote: Couple of tricks I've used with some success... 1. If this is data

Re: [python-win32] Writing to Excel performance

2008-12-12 Thread Tim Roberts
Dahlstrom, Roger wrote: I understand where you're coming from, I just don't like how Windows handles such things. My opinion is that determining file type by extension (arbitrary at that) is a bad thing to begin with. This is veering a bit off-topic for this mailing list, but I'd be

Re: [python-win32] Writing to Excel performance

2008-12-12 Thread Greg Ewing
Tim Roberts wrote: Dahlstrom, Roger wrote: My opinion is that determining file type by extension (arbitrary at that) is a bad thing to begin with. This is veering a bit off-topic for this mailing list, but I'd be curious to hear what alternatives you would suggest. The way classic MacOS