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Since September 2026
Instructor since September 2026
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Practical Excel from scratch: Learn how to use it for work
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From 17 £ /h
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Do you really want to learn Excel and be able to use it in your work, studies, or personal projects?

I help you learn Excel in a practical, simple way, adapted to your level, from zero to an intermediate/advanced level.

In the classes we will work with exercises and real situations so that you not only learn what each function does, but also when and why to use it.

We can work on, among other things:
• Formulas and functions
• XLOOKUP and other search functions
• Tables and filters
• Pivot tables
• Charts and reports
• Data cleaning and organization
• Power Query
• Dashboards and indicators
• Automation of repetitive tasks

We can also work directly on a file you need to resolve, explaining step by step how to do it so you can repeat it yourself.

The classes are especially geared towards students, workers, freelancers and people who want to improve their Excel skills for the workplace.

My goal is for you to finish each class knowing how to do something you didn't know how to do before and, above all, that you can apply it on your own.
Extra information
No prior knowledge is required. We'll work with practical exercises, and if you'd like, we can also use your own Excel files to solve specific problems and learn how to do it on your own. All you need is a computer with Excel.
Location
location type icon
Online from Spain
About Me
I have a degree in Economics and professional experience in the administrative, accounting and financial fields.

I like to explain concepts clearly and practically, adapting to each student's level and needs. My goal isn't for you to memorize procedures, but for you to understand why things are done the way they are and be able to solve them on your own.

In my classes I work in a practical way, using exercises and examples similar to those you might find in your studies or in the working world.

If you're having trouble with a particular topic, we can focus directly on it and move forward step by step until you understand it.

I can also help you work with Excel applied to real-world situations in administration, accounting, and data analysis.
Each class is tailored to what you need to learn.
Education
Degree in Economics (University of Granada).
Master in Labor, Accounting and Tax Consulting (EDASE).
Training and professional experience in administration, accounting and finance.
Experience / Qualifications
More than 5 years of experience in the administrative and financial field, working with documentation, accounting, management and information analysis.
Hands-on experience with Excel, including formulas, XLOOKUP, pivot tables, charts, and Power Query for organizing, processing, and analyzing data.
My professional experience allows me to approach classes from a practical perspective and geared towards the working world.
Age
Adults (18-64 years old)
Student level
Beginner
Intermediate
Duration
60 minutes
The class is taught in
Spanish
English
Availability of a typical week
(GMT -04:00)
New York
at teacher icon
Online via webcam
Mon
Tue
Wed
Thu
Fri
Sat
Sun
00-04
04-08
08-12
12-16
16-20
20-24
Are you finding accounting difficult to understand or do you need help preparing for an exam?

I teach accounting in a practical way, adapted to your level, starting from the basics and progressing to more complete exercises.

We will work through step-by-step exercises so that you understand not only what entry you have to make, but why it is done and how it affects the annual accounts.

We can work on, among other things:
• Basic accounting concepts
• General Accounting Plan
• Accounting entries
• Purchases and sales
• VAT
• Fixed assets and depreciation
• Periodizations and regularizations
• Stock
• Accounting close
• Balance sheet
• Profit and loss account
• Exercises and exam preparation

We can also work directly on the exercises or notes you are using in class, solving them together and explaining each step.

The goal is that you don't have to memorize the exercises, but rather that you understand the logic of accounting and can solve them on your own.
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AI is not a movie robot: Difference between fiction and reality.

How it works (simply): The image of the "giant library": AI has read billions of books and uses them to predict the continuation of a sentence or create an image.

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* Summary of achievements.
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The relationship between variables and constraints

Weak Duality Theory

Strong Duality Theory

Conditions for Complementary Slackness

Dual variables as marginal costs

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AI is not a movie robot: Difference between fiction and reality.

How it works (simply): The image of the "giant library": AI has read billions of books and uses them to predict the continuation of a sentence or create an image.

Where is it already present? Spell checkers, Netflix/YouTube suggestions, GPS, and voice assistants (Siri/Alexa).

2: Using AI to make life easier
Conversing with AI (ChatGPT, Claude, Gemini):

Ask him to write an administrative email or a complex letter.

Summarize a long newspaper article or document.

Plan a travel itinerary or find recipe ideas with what's left in the fridge.

AI for creativity and memory:

Generate images to illustrate a birthday card (Midjourney, DALL-E).

Using AI to restore or colorize old family photos.

3: Learning to "talk" to AI (The Art of the Prompt)
The context method: Why "Give me a cake recipe" is less effective than "I am allergic to gluten and I am hosting 4 people, give me a simple chocolate cake recipe".

The expert's role: Learning to tell AI "Act like a travel guide" or "Act like an expert gardener".

4: Precautions and Critical Thinking (The Survival Guide)
"Hallucinations": Understand that AI can make false claims with complete certainty (never take medical or legal advice from AI without verification).

Privacy protection:

Never give sensitive data (social security number, passwords, bank details) to an AI.

Knowing that everything we write to the AI is potentially used to train it.

Spotting "Deepfakes":

How to recognize a doctored image or video (details on the hands, strange reflections, slightly metallic voice).

Verify the information: the golden rule of cross-referencing sources.

5: Ethics and Impacts (To go further)
Copyright: Who owns an image created by AI?

The environmental impact: The water and energy consumption of AI servers.

The future: Will AI replace us or assist us?
verified badge
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Session 1: Revolutionizing your Scientific Writing with LaTeX & AI
Duration: 2 Hours | Level: Beginner | Tools: Overleaf + AI**

First Hour: Foundations and Cloud Environment (60 min)

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- Key advantages:** Unrivaled typographic quality, automatic reference management, stability on long documents (theses), and free of charge.
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2. Immersion in Overleaf (25 min)

- Configuration:** Creation of an account and first project "Blank Project".
- Exploring the interface:** The file panel (left), the code editor (middle) and the PDF preview (right).
- Real-time collaboration:** How to share a project and leave comments (like on Google Docs).
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Second Hour: Mathematics and the Magic of AI (60 min)

4. The Power of Mathematics (20 min)

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5. From hand to screen: AI at the service of LaTeX (30 min)

- Presentation of OCR tools:** Use of **Mathpix Snip** (the leader) or models like Gemini/ChatGPT to transform a photo into code.
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1. Take a picture of a complex handwritten formula (e.g., an integral with matrices).
2. Use AI to generate the corresponding LaTeX code.
3. Correction and insertion: Learn to check the AI-generated code before copying and pasting it into Overleaf.

6. Conclusion and Q&A (10 min)

* Summary of achievements.
* Resources for further exploration
* Definition of the exercise for the next session.
verified badge
عبدالرحمن
A comprehensive course in Linear Programming and Linear Optimization, based on the renowned reference:

Bertsimas, D., & Tsitsiklis, J. N. (1997). Introduction to Linear Optimization. Athena Scientific.

The course covers the first five chapters in their entirety, forming the foundation upon which everything that follows in mathematical improvement is built. The concepts are explained in clear Arabic with step-by-step solved examples, illustrations, and practice exercises.

The five lectures:

Lecture 1 — Introduction to Linear Optimization:

What is optimization? And why do we need it?

Variables, decisions, functions, and constraints

The general formula for linear programming

Standard Form

Reducing any issue to the standard formula

Piecewise Linear Convex Functions

Graphing and solution

Fundamentals of Linear Algebra

Analysis of algorithms and number of operations

Lecture 2 — Linear Programming Basics (LP Basics):

Practical examples: food issues, production, scheduling, networks, pattern classification

Converting problems to standard format

Remove free variables

Slack and Surplus variables

convex and concave functions

Absolute values in objective functions

Graphical solution in 2D and 3D

The five possible solutions

Lecture 3 — Geometry of Linear Programming (LP):

Polyhedron and Polytope

Hyperplanes & Halfspaces

Extreme Points

Vertices

Basic Feasible Solutions

Active Constraints

Degeneration

The presence of extreme points

Visual examples in 2D and 3D

Lecture 4 — The Simplex Method:

Optimality Conditions

Reduced Costs

Development of the Simplex algorithm

Simplex Tableau

Pivoting

The Revised Simplex Method

Cycling and how to avoid it

Bland's Rule

Finding a basic, possible, initial solution

Two-Phase Simplex Method

Big-M Method

Mathematical aptitude and average behavior

Klee-Minty cube

Lecture 5 — Duality Theory:

The original (Primal) and dual problem

The relationship between variables and constraints

Weak Duality Theory

Strong Duality Theory

Conditions for Complementary Slackness

Dual variables as marginal costs

Shadow Prices

Dual Simplex Method

Geometric interpretation of duality

Applications in Economics and Finance

Advantages:

🎯 Explanation based on an accredited academic reference

📐 Illustrations for each geometric concept

🧮 Solved examples with numbers

💻 Examples in Python using gurobipy

📊 Comparison tables between different formulas

🔗 Linking theory to practical applications

📝 Exercises at the end of each lecture
Good-fit Instructor Guarantee
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