Advanced Excel Interview Questions in Thiruvananthapuram
36 practice questions with answers for Advanced Excel interviews in Thiruvananthapuram.
Advanced Excel jobs in Thiruvananthapuram
Thiruvananthapuram's Technopark is one of India's oldest IT parks, hosting IT-services, product and engineering-services companies. Data and testing teams here often work with global clients in finance, travel and healthcare.
Below are 36 questions that match the mix of service, product and domain employers hiring mis executives in Thiruvananthapuram.
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01
Calculate an employee's age or tenure in years and months from the joining date.
DATEDIF is an older hidden function that still works but does not appear in autocomplete:
=DATEDIF(B2,TODAY(),"Y")&" years "&DATEDIF(B2,TODAY(),"YM")&" months"
Units: Y full years, M full months, D days, YM months after full years, MD days after full months. For a decimal tenure use =YEARFRAC(B2,TODAY()). The start date must be earlier than the end date or DATEDIF returns #NUM!.
02
Your query refresh fails with 'The column Amount of the table wasn't found'. What happened and how do you fix it?
The source file's header changed, for example Amount became Amount (Rs), and a step that refers to the old name, often Changed Type or Renamed Columns, breaks. Open the query, click through the steps to find the first error, and update the name or rename the column back early in the query. To prevent repeats, agree a fixed template with the data owner and avoid steps that list every column unnecessarily.
03
Return the Indian financial year (April to March) for a date, like FY 2026-27.
If the month is April or later, the FY starts in the same year; otherwise it started the previous year:
=LET(y,IF(MONTH(A2)>=4,YEAR(A2),YEAR(A2)-1),
"FY "&y&"-"&RIGHT(y+1,2))
For 15-May-2026 this gives FY 2026-27, and for 10-Feb-2026 it gives FY 2025-26. The fiscal quarter is =ROUNDUP((MOD(MONTH(A2)-4,12)+1)/3,0).
04
Write VBA to save each worksheet as a separate PDF.
Use ExportAsFixedFormat inside a loop:
Sub SheetsToPDF()
Dim ws As Worksheet, p As String
p = ThisWorkbook.Path & "\"
For Each ws In ThisWorkbook.Worksheets
ws.ExportAsFixedFormat Type:=xlTypePDF, _
Filename:=p & ws.Name & ".pdf", _
Quality:=xlQualityStandard, IgnorePrintAreas:=False
Next ws
End Sub
Set print areas and page setup first so each PDF fits the page properly.
05
What are dynamic arrays and what causes a #SPILL! error?
In Microsoft 365, a formula can return many values that spill into nearby cells, as with UNIQUE, FILTER, SORT and SEQUENCE. Other formulas can refer to the whole result with the spill operator, for example =COUNTA(E2#). #SPILL! appears when the spill area is blocked by data, the formula sits inside a Table, the area overlaps merged cells, or the result would run past the sheet edge. Clear the blocking cells to fix it.
06
List the steps to build a sales and margin percentage combo chart.
Select the Month, Sales and Margin % columns and go to Insert > Recommended Charts > All Charts > Combo. Set Sales to Clustered Column and Margin % to Line with Markers, ticking Secondary Axis for Margin %. Add axis titles, format the secondary axis as 0%, add data labels only to the line if needed, and remove gridline clutter. Give it a title that states the insight, such as Margin fell while sales grew.
07
Explain the join kinds available in Power Query Merge.
Left Outer keeps all rows from the first table and matches from the second, the most common choice. Right Outer does the reverse. Full Outer keeps all rows from both. Inner keeps only matching rows. Left Anti keeps rows in the first table with no match, and Right Anti keeps rows in the second with no match. Anti joins are excellent for finding missing invoices or customers during reconciliation.
08
Tell me about a time you presented data to senior leadership.
Situation: I had to present quarterly branch performance to regional directors. Task: make twenty pages of tables understandable in ten minutes. Action: I built one dashboard sheet with four KPIs against target, a trend chart and a ranked bar chart of branches, and kept detail tables as backup. I opened with the key message and the two branches needing action. Result: the meeting ended with clear decisions, and the format became the standard quarterly review pack.
09
What checks do you run when cleaning a new dataset?
Check row counts against the source, then look for duplicate keys, blanks in mandatory fields, inconsistent text such as Delhi and New Delhi, extra spaces and mixed case, dates stored as text or in the wrong locale, negative or extreme numbers that look like typos, and codes losing leading zeros. Power Query's Column Quality and Column Profile views show errors, empties and distinct counts for each column quickly.
10
Tell me about a time you had to explain a complex Excel report to a non-technical manager.
Situation: my manager was unsure why the new incentive sheet showed lower payouts. Task: explain the logic without formulas. Action: I added a one-page summary with the slab table, walked through two real employees step by step, and used colour to show which inputs drove the result. Result: the manager understood it in one meeting, approved the sheet and asked me to add the same summary to future models.
11
Tell me about a time your automation failed after you handed it over. What did you do?
Situation: a report macro I wrote stopped working for the accounts team. Task: fix it quickly and stop it happening again. Action: I found that a sheet had been renamed and the macro used a fixed sheet name and file path. I fixed it with ThisWorkbook.Path and code names, added an error handler with a clear message, and wrote a short usage note. Result: it ran reliably for the rest of the year and I now test macros on another user's machine before handover.
12
How do you write a user-defined function (UDF) in VBA? Give an example.
Write a Public Function in a standard module and use it like any worksheet function:
Function GSTAmount(amount As Double, Optional rate As Double = 0.18) As Double
GSTAmount = Round(amount * rate, 2)
End Function
In a cell: =GSTAmount(B2) or =GSTAmount(B2,5%). UDFs cannot change other cells or formats, and they recalculate more slowly than built-in functions, so avoid them in very large ranges.
13
Your manager wants each product's share of sales within its region, not of the grand total. How do you show it?
Put Region and then Product in Rows, and add Sales to Values twice. For the second copy, open Value Field Settings > Show Values As > % of Parent Row Total. Each product then shows its share of its own region, and each region totals 100 percent. Using % of Grand Total instead would show share of the whole company, which answers a different question.
14
Why do you need a separate Date table in the Data Model?
Time intelligence functions such as TOTALYTD and SAMEPERIODLASTYEAR need a continuous date column with no gaps, covering full years. A Date table also adds columns like Month Name, Fiscal Year and Quarter for slicing. Create it with Power Query or DAX, for example:
Date = CALENDAR(DATE(2024,4,1),DATE(2027,3,31))
Then mark it as the date table in Power Pivot and relate it to every fact table's date column.
15
How do you get a distinct count, such as unique customers, in a pivot table?
A normal pivot only offers Count, which counts every row. When inserting the pivot, tick Add this data to the Data Model. Then in Value Field Settings choose Distinct Count, which counts unique customer IDs per region or month. Alternatively, create a DAX measure =DISTINCTCOUNT(Sales[CustomerID]) in Power Pivot, which can be reused across pivots.
16
Write a custom number format that shows positives in green, negatives in red brackets and zero as a dash.
Custom formats have up to four sections separated by semicolons: positive; negative; zero; text. Press Ctrl+1 > Number > Custom and enter:
[Green]#,##0;[Red](#,##0);"-";@
For Indian lakh-crore grouping you can use:
[>=10000000]##\,##\,##\,##0;[>=100000]##\,##\,##0;##,##0
The value stays unchanged; only the display changes.
17
Explain the match_mode and search_mode arguments of XLOOKUP.
match_mode: 0 exact (default), -1 exact or next smaller, 1 exact or next larger, 2 wildcard. search_mode: 1 first to last (default), -1 last to first, 2 binary search ascending, -2 binary search descending.
=XLOOKUP("*Infra*",Cust[Name],Cust[ID],,2) wildcard match
=XLOOKUP(A2,Log[Item],Log[Price],,0,-1) last occurrence
Binary modes are fast but give wrong answers if the data is not sorted.
18
How do you return all matching values for a lookup, not only the first?
In Microsoft 365, FILTER returns every match as a spilled list, and TEXTJOIN can join them into one cell:
=FILTER(Orders[OrderID],Orders[Customer]=A2)
=TEXTJOIN(", ",TRUE,FILTER(Orders[OrderID],Orders[Customer]=A2,""))
In older versions, use TEXTJOIN with IF as an array formula:
=TEXTJOIN(", ",TRUE,IF(Orders[Customer]=A2,Orders[OrderID],""))
19
What are Applied Steps and the M language in Power Query?
Each transformation you click, like removing columns or changing types, is saved as a step in the Applied Steps pane, and the steps run in order on every refresh. Behind them is M, a functional formula language visible in the Advanced Editor. You can rename steps, delete or reorder them, and edit M directly for logic the interface does not provide, such as custom functions or dynamic column lists.
20
A few very large values make every other bar in your chart look tiny. How do you present the data clearly?
Options depend on the message. Sort bars and show the top items with the rest grouped as Others; split into two charts, one for the giants and one for the rest; add data labels so small values are still readable; or use a logarithmic axis for technical audiences, clearly labelled. Avoid cutting the axis on bar charts, because bar length then stops representing value and misleads readers.
21
Your Power Query output has 20 lakh rows and Excel says it cannot load it to a sheet. What do you do?
A worksheet holds at most 1,048,576 rows, so the result will not fit. Choose Close & Load To and select Only Create Connection with Add this data to the Data Model. The model compresses data and can handle many millions of rows, and you analyse it with a pivot table or DAX measures. If users only need summaries, group the data inside Power Query before loading.
22
A sales file has employee names but the master list has employee IDs, and some names repeat. How do you join them safely?
Do not look up by name alone, because a duplicate name returns the first match and silently assigns sales to the wrong person. First flag duplicates in the master with COUNTIF(names,name)>1. Then build a composite key, such as name plus branch or name plus email, in both tables and look up on that. Rows still ambiguous should go back to the data owner for an ID rather than be guessed.
23
Your manager asks you to replace all VLOOKUPs in a legacy workbook with XLOOKUP. How do you approach it?
First confirm everyone who opens the file has Microsoft 365 or Excel 2021, because older versions show #NAME? for XLOOKUP. Save a backup, list the VLOOKUPs using Find with Look in: Formulas, and replace them sheet by sheet, keeping an exact-match default. Compare key totals before and after, document the change in a notes sheet, and keep a version that still uses INDEX/MATCH if external clients need it.
24
What is the difference between RELATED and RELATEDTABLE?
RELATED is used on the many side to fetch a single value from the one side, such as getting a product's category in each sales row. RELATEDTABLE is used on the one side to return all matching rows from the many side, so in Products you could write Order Count = COUNTROWS(RELATEDTABLE(Sales)). Both need an existing relationship and a row context.
The Data Model is an in-memory database inside the workbook, powered by the VertiPaq engine, which compresses data by column and can handle millions of rows, far beyond the sheet limit. Power Pivot is the window used to manage it: import tables, create relationships, and write DAX measures and calculated columns. Pivot tables built on the Data Model can combine several related tables without VLOOKUP.
26
A shared Excel file has grown to 40 MB and takes ages to recalculate. What do you check?
Start with Ctrl+End to see if the used range is far beyond the real data and delete the extra rows and formats. Then look for volatile functions like OFFSET, INDIRECT and TODAY, whole-column references inside SUMPRODUCT or array formulas, and duplicated conditional formatting rules. Replace repeated lookups with one helper column, move heavy transforms to Power Query, and save as .xlsb if size still matters.
27
Budgets are set by category and month, but sales are recorded by product and day. How do you compare them in one pivot?
Do not relate the two fact tables directly. Create shared dimension tables at a grain both can link to: a Category table and a Date table with a Month column. Relate Budget[Category] and Sales via Products to Category, and both date columns to the Date table, using the first day of the month for budgets. Then measures [Total Sales] and [Total Budget] work together when the pivot uses Category and Month.
28
How do you remove duplicate customers but keep the most recent record in Power Query?
Sort by Updated Date descending, then buffer the table so the sort order is respected before removing duplicates on the key:
Sorted = Table.Sort(Source,{{"UpdatedOn", Order.Descending}}),
Buffered = Table.Buffer(Sorted),
Latest = Table.Distinct(Buffered,{"CustomerID"})
Without Table.Buffer, Power Query may not keep the sorted order, so the record kept could be an older one.
29
How do you stop a pivot from losing formatting and column widths on refresh?
Open PivotTable Options > Layout & Format, untick Autofit column widths on update and tick Preserve cell formatting on update. Set number formats through Value Field Settings > Number Format rather than formatting cells directly, because field-level formats survive refresh and layout changes. For a consistent look across reports, create a custom PivotTable Style and apply it to every pivot.
30
Your weekly dashboard must go to 40 people who cannot access the source files. How do you distribute it safely?
Decide what they need: a view or a working file. For a view, export the dashboard sheet to PDF or share a view-only link from SharePoint or OneDrive. For a file, save a copy, break external links, paste pivots or formulas as values if needed, remove hidden sheets and personal data with Inspect Document, and protect the sheet. Automate the steps with a macro or Office Script so every week is identical.
31
How do you use approximate match to apply discount or tax slabs?
Create a slab table with the lower limit of each band in ascending order and the rate next to it. Approximate match returns the row for the largest limit not greater than the value:
=VLOOKUP(B2,Slabs!$A$2:$B$6,2,TRUE)
=XLOOKUP(B2,Slabs[From],Slabs[Rate],,-1)
If B2 is 7.5 lakh and the bands start at 0, 3, 7 and 10 lakh, the 7 lakh row is returned. Unsorted data gives wrong results silently.
When you click a pivot cell while writing a formula, Excel inserts GETPIVOTDATA, which pulls a value by field names instead of cell position:
=GETPIVOTDATA("Amount",$A$3,"Region","North","Month","Apr")
It keeps working when the pivot layout changes, which suits KPI cards in dashboards. If you want plain references, turn it off in PivotTable Analyze > Options > Generate GetPivotData.
33
Tell me about a time you had to learn a new tool quickly to deliver a project.
Situation: our sales data crossed two million rows and normal pivots crashed. Task: deliver a monthly dashboard within two weeks. Action: I learned Power Pivot and DAX through documentation and practice files, built a star schema with a Date table, wrote measures for YTD and growth, and checked every number against old reports. Result: the dashboard refreshed in under a minute, and I ran a short session to train two colleagues.
34
Calculate working days between two dates excluding Sundays and a holiday list.
NETWORKDAYS excludes Saturday and Sunday by default. For a six-day week common in India, use NETWORKDAYS.INTL with weekend code 11 (Sunday only):
=NETWORKDAYS.INTL(A2,B2,11,Holidays[Date])
To find a due date 10 working days after A2:
=WORKDAY.INTL(A2,10,11,Holidays[Date])
Keep the holiday list in a Table so it can be updated each year.
35
What is the difference between a Sub and a Function in VBA?
A Sub performs actions, such as formatting cells or saving files, and is run as a macro. A Function returns a value and can be used in worksheet formulas as a user-defined function or called from other code. Both are written in a standard module, opened through Alt+F11 > Insert > Module. Event code goes in the sheet or ThisWorkbook module instead.
36
How do you combine all files in a folder using Power Query?
Place files with the same structure in one folder. Go to Data > Get Data > From File > From Folder, select the folder and click Combine & Transform. Choose the sheet or table from the sample file; Power Query creates a helper function and appends all files, adding a Source.Name column with the file name. Apply cleaning steps once, Close & Load, and later just drop new files in and Refresh.
Few big employers listed in Thiruvananthapuram?
Many Thiruvananthapuram candidates also apply to teams in Bangalore and to remote or hybrid roles. Practise the Bangalore set as well.
Which companies hire Advanced Excel professionals in Thiruvananthapuram?
Companies with large offices in Thiruvananthapuram include many IT services and product firms. Use their company pages below to practise employer-specific sets.
Are Advanced Excel interviews in Thiruvananthapuram different from other cities?
The questions depend more on the company than the city. Thiruvananthapuram's mix of employers decides the style: Data and testing teams here often work with global clients in finance, travel and healthcare
How do I find Advanced Excel jobs in Thiruvananthapuram?
Shortlist companies with Thiruvananthapuram offices, keep your CV focused on Advanced Excel projects, apply on company career pages and job portals with the Thiruvananthapuram filter, and practise the questions on this page before each interview.