Help How would I save a file to upload to garrysmod.org

Im using winrar pro Im trying to upload a file and it says it needs to be .zip but winrar is .rar is there a converter because I bought winrar and im hoping i dont have to use 7 zip! thanks for anyhelp in advance.

[editline]05:18AM[/editline]

I hope i didnt post in wrong section if i did sorry im new to facepunch

on the desktop, right click, hover over new, click zipped folder. put the save file and tga image in there and upload to gmod.org.

[editline]02:24AM[/editline]

btw i think its in the right section

thank you sooooooo much

no problem. i assume it worked? what did u upload? give me the address