<!-- If you are reporting a new issue, make sure that we do not have any duplicates already open. You can ensure this by searching the issue list for this repository. If there is a duplicate, please close your issue and add a comment to the existing issue instead. Use the commands below to provide key information from your environment: You do NOT have to include this information if this is a FEATURE REQUEST --> **Description** According with the [go Modules spec](https://github.com/golang/go/wiki/Modules#user-content-releasing-modules-v2-or-higher) a module with the version v2+ (`excelize v2.0.0`) should be imported as follows: ``` go import ( "github.com/360EntSecGroup-Skylar/excelize/v2" ) ``` But this causes the error: ``` unknown import path "github.com/360EntSecGroup-Skylar/excelize/v2": cannot find module providing package github.com/360EntSecGroup-Skylar/excelize/v2 ``` **Steps to reproduce the issue:** 1. Import the dependency `"github.com/360EntSecGroup-Skylar/excelize/v2"` in a go Module enabled project. 2. Run `go build`. **Describe the results you received:** Error: ``` unknown import path "github.com/360EntSecGroup-Skylar/excelize/v2": cannot find module providing package github.com/360EntSecGroup-Skylar/excelize/v2 ``` **Describe the results you expected:** Build should be successful. **Output of `go version`:** ```text go version go1.12.2 linux/amd64 ``` **Excelize version or commit ID:** ```text v2.0.0 ```