How to attach large file on yahoomail?

What i normally do, when i send a bunch of heavy files via email... i usually compress my files in one zip/winrar folder in that way you can put many files and the email provider can enable to compress it in a small file format. You can try putting your files on a winrar/zip folder and try to attach in on the email. Hope this helps :D

You might try reformatting the file so it doesn't take up so much space. I don't use yahoo, so I don't know the specifics, but I often upload things to other sites and sometimes I need to reformat it.