Create README.md

Author: aleoyakas

README.md

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+<a href="https://www.cortex-ia.co.uk/" target="_blank"><img src="https://github.com/CortexIATest/CTXImages/blob/master/Cortex-350-120.png" alt="Welcome to Cortex!" width="350" height="120" border="0"></a>
+
+# CTX-Excel
+Cortex Subtasks which interact with Microsoft Excel without requiring Microsoft Excel to be installed on the Cortex application server.
+
+The module allows users to perform the following functionality:
+* Add Conditional Formatting
+* Create Pivot Charts
+* Create Pivot Tables
+* Create Workbook
+* Create Worksheet
+* Insert Headers
+* Insert Rows
+* Set Cell
+* Set Cell Where
+
+
+## Table of Contents
+1) [Dependencies](#dependencies)
+    * [Cortex Version](#cortex-version)
+    * [OCIs](#ocis)
+    * [Files](#files)
+    * [Other](#other)
+1) [Installation](#installation)
+1) [How to use](#how-to-use)
+1) [How you can contribute](#how-you-can-contribute)
+1) [Versioning](#versioning)
+1) [Licensing](#licensing)
+
+## Dependencies
+### Cortex Version
+This version of the CTX-Excel module was developed in Cortex v6.3.0. Some functionality may not be available in earlier verions of Cortex.
+
+### OCIs
+The CTX-Excel module requires the following Cortex OCIs:
+* PowerShell
+
+### Files
+The CTX-Excel module requires the following files:
+* [CTX-Excel Studio Package](https://github.com/CortexIntelligentAutomation/CTX-Excel/releases/download/untagged-735f460df6f7d65c9d19/Cortex.Studio.Package.-.V2.3.studiopkg)
+
+### Other Requisites
+The CTX-Excel module has the following additional requirements which are explained in detail in the [Deployment Plan](#Installation):
+* PowerShell v5 to be installed on the application server
+* PSExcel PowerShell module installed
+* ImportExcel PowerShell module installed
+
+## Installation
+Details of how the module should be imported into Cortex can be found in the [Deployment Plan](#Installation).
+
+## How to use
+A detailed User Guide has been provided with instructions on how to use the module, available [here](https://github.com/CortexIATest/CTXExcel/blob/master/CTX-Excel%20-%20User%20Guide.docx). Configuration of each flow/subtask's inputs and outputs are detailed in notes on the flow/subtask workspace.
+
+## How you can contribute
+Unfortunately, we cannot offer pull requests at this time or accept any improvements.
+
+## Versioning
+The CTX-Excel module has the following versions, starting with the most recent:
+
+Version | Release | Functionality | Notes
+------------ | ------------- | ----------- | -----------
+v2.3 | 25/09/2018 | Create Pivot Tables | Fixed Bugs
+v2.3 | 25/09/2018 | Create Pivot Charts | Fixed Bugs
+v2.2 | 05/01/2018 | Add Conditional Formatting | Created
+v2.1 | 21/11/2017 | Create Pivot Charts | Created
+v2.0 | 16/11/2017 | Create Pivot Tables | Created
+v1.0 | 12/05/2017 | Create Workbook | Created
+v1.0 | 12/05/2017 | Create Worksheet | Created
+v1.0 | 12/05/2017 | Insert Headers | Created
+v1.0 | 12/05/2017 | Insert Rows | Created
+v1.0 | 12/05/2017 | Set Cell | Created
+v1.0 | 12/05/2017 | Set Cell Where | Created
+
+## Licensing
+All functionality within this module is licensed under the [Apache 2.0 License](https://www.apache.org/licenses/LICENSE-2.0).
+
+Copyright 2018 Cortex Limited
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.