You have the goal; now go and build the skill.

Insert custom math formulas directly into your PivotTable summaries. 3. Data Validation and Cleaning

A "full" PDF should also include so you can practice.

Making cells change color automatically based on their value.

Many local tech institutes and non-profits in Yangon and Mandalay publish free, open-source basic and advanced Excel guidebooks in the Burmese language. Check official educational portals or verified social media pages of local ICT trainers.

Open the PDF guide on one half of your screen (or a mobile device) and have Microsoft Excel 2013 open on the other half. Never just read a formula—type it out.

If you perform the exact same steps every day, you can record them using a Macro.

Advanced analysis helps management make smarter business choices.

Introduce yourself to basic automation by recording macros and assigning them to custom buttons on your sheet.

The Myanmar Information Management Unit offers comprehensive Excel Training materials that include advanced modules like Flash Fill and Data Validation.