Request: Please Professionally Enhance My Gantt Chart Template

Here are free Excel Gantt chart template sources that you can download and adapt for your supplier timelines:

Gantt charts

Visualize a project to schedule timings or dependencies with free online Gantt chart templates in Microsoft Excel.

Free Gantt charts customizable templates online | Microsoft Excel

Use free Gantt chart templates in Excel to visualize task progress over time.

Vertex42 – Simple & Reliable Gantt Templates

A very popular professional Gantt chart template that uses conditional formatting and requires only Start/End dates or durations. You can adapt it for monthly timelines like your Oct-Apr view. Vertex42.com+1
Vertex42 Simple Gantt Chart (free Excel download)

ProjectManager.com – Free Gantt Chart Template

Includes more structured layout and multiple versions (e.g., construction, manufacturing, services themes). ProjectManager
ProjectManager.com Gantt Chart Template

Smartsheet Free Gantt Chart Templates

A curated collection of Excel and Google Sheets templates with different styles (weekly, multi-project, phase-based). Smartsheet
Smartsheet Gantt Chart Templates

Ones.com Free Excel Gantt Templates

Offers a set of customizable gantt chart templates with task owner, start/end dates, and nicely formatted timeline views. ONES.com
Ones.com Excel Gantt Templates

XLSXTemplates – Gantt with Conditional Formatting

A template already pre-built with conditional formatting rules to show bars based on dates — ideal if you want visible months coloured automatically. Excel templates
XLSXTemplates Gantt Chart with Conditional Formatting

WPS Office Free Gantt Chart Templates

Multiple downloadable designs that you can open directly in Excel for Windows/Mac. WPS
WPS Office Gantt Templates

However, if you want something tailor-made, I advise you to have it custom-made; it doesn't cost that much compared to readily available software.

My answers are voluntary and without guarantee!

Hope this will help you.

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