EPPlus v8.x - 1 Developer Commercial Use 1 Year Subscription License

After successfully placing your order, your purchase will be added to your EPPlus Software Customer Account. Information on how to download the software, set a password or log on to your account will be sent to you via email.

Licensed per year, per developer. With a subscription you can always use the latest version, but you need to have an active license as long as you use EPPlus for development. The license is automatically invoiced at the end of the license period and renewed when the invoice is paid. You can end the subscription at the end of the license period and start a new subscription later when needed.