And thats to big.
I think to remember 4.5 and about 8 mb in total for the filesize for attachment's
Maybe try to zip the file and see if it gets small enough or upload it to dropBox or similar and just put out the link to the file.
V18, V19, V20, V21, 2015/ 16/ 17/ 18 Pro. Platinum
Deluxe V20, V21, 2015/ 16/ 17
Windows 10 Home Premium 64 bit, 32 GB
NVIDIA Geforce GTX 780m, 1 GB