Meta Reports provides a meta language and data structure to create a 'meta' report. This report can then be exported into any format desired. MR provides HTML, PDF, and XLSX exports built in.

Rails Excel strategy to write xlsx files through writeexcel gem

Convert csv file to xlsx file.

Parses Excel files(xlsx) read by other file input plugins.

Exctract an array of emails from various file formats (xls, xlsx, csv, txt)

A web resource scraper that lets you define xpath selectors, clues and hooks for custom parsing as well as export to xlsx.

A simple way to Open .csv, .xls, .xlsx files. You can convert it to 2D array, hash, data frame.

if ssconvert from gnumeric is installed it can convert xls and xlsx as well (single sheet)

Convert from a simple hierarchical-tree outline text into ugly xlsx file

Standardize of operation manner for reading Excel files(.xls, .xlsx).

Xlsx stream download for rails.

Convert sheets(XLSX, CSV and more...)

Writes XLSX files

A gem for inserting data to mysql from Excel(xlsx)

cgo support xlsx, from golang excelize

support to grep something in .xlsx files

Export your data as various types of spreadsheets. Supports csv and xlsx output.

A simple way to Open .csv, .xls, .xlsx files. You can convert it to 2D array, hash, data frame.

A Ruby gem that streams and parses large Excel(xlsx and xlsm) files fast and efficiently.

Smart Importer allows you to import relevant data from spreadsheets (xlsx or csv) to any of your models with one line of code.