You can increase the upload limit to your Wordpress installation by adding (or amending) a php.ini to the wp-admin folder with the following settings:

post_max_size = 150M
upload_max_filesize = 100M

The php.ini settings are non-recursive (i.e., only apply to that folder and not its children).

Adjust as needed by making the settings larger than the file you're uploading.

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