This closes qax-os#842, avoid empty rows in the tail of the worksheet

Author: xuri

Diff for: README.md

@@ -13,7 +13,7 @@
 
 ## Introduction
 
-Excelize is a library written in pure Go providing a set of functions that allow you to write to and read from XLSX / XLSM / XLTM files. Supports reading and writing spreadsheet documents generated by Microsoft Excel™ 2007 and later. Supports complex components by high compatibility, and provided streaming API for generating or reading data from a worksheet with huge amounts of data. This library needs Go version 1.15 or later. The full API docs can be seen using go's built-in documentation tool, or online at [go.dev](https://pkg.go.dev/github.com/360EntSecGroup-Skylar/excelize/v2?tab=doc) and [docs reference](https://xuri.me/excelize/).
+Excelize is a library written in pure Go providing a set of functions that allow you to write to and read from XLSX / XLSM / XLTM / XLTX files. Supports reading and writing spreadsheet documents generated by Microsoft Excel™ 2007 and later. Supports complex components by high compatibility, and provided streaming API for generating or reading data from a worksheet with huge amounts of data. This library needs Go version 1.15 or later. The full API docs can be seen using go's built-in documentation tool, or online at [go.dev](https://pkg.go.dev/github.com/360EntSecGroup-Skylar/excelize/v2?tab=doc) and [docs reference](https://xuri.me/excelize/).
 
 ## Basic Usage
 

Diff for: README_zh.md

@@ -13,7 +13,7 @@
 
 ## 简介
 
-Excelize 是 Go 语言编写的用于操作 Office Excel 文档基础库，基于 ECMA-376，ISO/IEC 29500 国际标准。可以使用它来读取、写入由 Microsoft Excel™ 2007 及以上版本创建的电子表格文档。支持 XLSX / XLSM / XLTM 等多种文档格式，高度兼容带有样式、图片(表)、透视表、切片器等复杂组件的文档，并提供流式读写 API，用于处理包含大规模数据的工作簿。可应用于各类报表平台、云计算、边缘计算等系统。使用本类库要求使用的 Go 语言为 1.15 或更高版本，完整的 API 使用文档请访问 [go.dev](https://pkg.go.dev/github.com/360EntSecGroup-Skylar/excelize/v2?tab=doc) 或查看 [参考文档](https://xuri.me/excelize/)。
+Excelize 是 Go 语言编写的用于操作 Office Excel 文档基础库，基于 ECMA-376，ISO/IEC 29500 国际标准。可以使用它来读取、写入由 Microsoft Excel™ 2007 及以上版本创建的电子表格文档。支持 XLSX / XLSM / XLTM / XLTX 等多种文档格式，高度兼容带有样式、图片(表)、透视表、切片器等复杂组件的文档，并提供流式读写 API，用于处理包含大规模数据的工作簿。可应用于各类报表平台、云计算、边缘计算等系统。使用本类库要求使用的 Go 语言为 1.15 或更高版本，完整的 API 使用文档请访问 [go.dev](https://pkg.go.dev/github.com/360EntSecGroup-Skylar/excelize/v2?tab=doc) 或查看 [参考文档](https://xuri.me/excelize/)。
 
 ## 快速上手
 

Diff for: rows.go

@@ -43,15 +43,19 @@ func (f *File) GetRows(sheet string) ([][]string, error) {
 	if err != nil {
 		return nil, err
 	}
-	results := make([][]string, 0, 64)
+	results, cur, max := make([][]string, 0, 64), 0, 0
 	for rows.Next() {
+		cur++
 		row, err := rows.Columns()
 		if err != nil {
 			break
 		}
 		results = append(results, row)
+		if len(row) > 0 {
+			max = cur
+		}
 	}
-	return results, nil
+	return results[:max], nil
 }
 
 // Rows defines an iterator to a sheet.
@@ -161,7 +165,9 @@ func rowXMLHandler(rowIterator *rowXMLIterator, xmlElement *xml.StartElement) {
 		}
 		blank := rowIterator.cellCol - len(rowIterator.columns)
 		val, _ := colCell.getValueFrom(rowIterator.rows.f, rowIterator.d)
-		rowIterator.columns = append(appendSpace(blank, rowIterator.columns), val)
+		if val != "" {
+			rowIterator.columns = append(appendSpace(blank, rowIterator.columns), val)
+		}
 	}
 }