Microsoft Excel

ApplicationMicrosoft Corporation

Also called excel, ms excel, xlsx

Microsoft CorporationProductivity

The Microsoft spreadsheet app. On Windows the process is EXCEL.EXE. Power Query and large workbooks are why this process grows. It is not Google Sheets and not the 365 suite page.

What you need to know

Excel is EXCEL.EXE. Sheets in a browser are not this process.

Microsoft Excel calculates workbooks. Power Query, PivotTables, and a million-row sheet are why EXCEL.EXE uses more RAM than Word on the same PC. The Microsoft 365 page does not explain a single book.

What is it?: The Excel spreadsheet app
Same as Google Sheets?: No. Different file and calc engine
Why is Excel.exe large?: Books, Power Query, and add-ins

Feex says

If Excel is the memory hog, I would look at the workbook and Power Query, not reinstall Windows. Google Sheets in Chrome is a different process list entirely.

What is Microsoft Excel?

Microsoft Excel is the spreadsheet in Office and Microsoft 365. The Windows executable is EXCEL.EXE. Access databases and Power BI Desktop are different products even when they share data.

If you have never used it

If you have a budget, a grade book, or a CSV to sort, this is desktop Excel, not Google Sheets in a browser and not the Microsoft 365 suite article. Install it with Office or Microsoft 365. You open .xlsx files in EXCEL.EXE. A Sheet shared only as a Google link will not calculate the same way here.

What is it used for?

Workbooks and formulas

Grid calc, charts, and .xlsx. Word can embed a table. It cannot replace this calc engine.

Power Query and PivotTables

Refresh from files, databases, and the web. This is a common reason EXCEL.EXE stays large.

CSV and analysis

Open exports from banks and tools. Encoding and column types still surprise people.

Who is it for?

Finance, ops, and anyone living in workbooks
People whose "Excel is slow" is one book, not the whole 365 suite
Users comparing desktop Excel with Google Sheets

Current status

Actively developed. This article is desktop Excel on Windows, not Excel for the web and not Excel Mobile.

How old is it?

Excel launched on the Mac in 1985 and on Windows in 1987. It replaced Microsoft Multiplan in that line. Current Excel still uses EXCEL.EXE. Lotus 1-2-3 is the historical rival, not Google Sheets.

Versions

Major channels first. Exact build numbers are not all verified here.

Microsoft 365 Excel

Excel 2024 / 2021

Excel on the web

System requirements

Values follow the publisher's public guidance. Workload still changes the real need.

Minimum

Minimum system requirements
CPU	1.6 GHz or faster, 2-core, per Microsoft for Microsoft 365 Apps
RAM	4 GB for 64-bit, per Microsoft. Large files want more
Storage	4 GB class install plus your documents
Operating system	A current Windows release Microsoft lists for Microsoft 365 Apps

Resource profile

CPU demand: Recalc, Power Query, and array formulas
RAM demand: Large books and Power Pivot models
Disk demand: AutoRecover and temp files on huge books

Installed processes

These executables belong to this product when it is installed.

Installed processes
EXCEL.EXE	Desktop Excel

Startup components

Excel starts when you open a workbook. Add-ins can keep it busy after the sheet looks idle.

File locations

Common Microsoft Excel locations
Typical Click-to-Run	C:\Program Files\Microsoft Office\root\Office16\EXCEL.EXE

File formats

XLSXXLSCSVXLSMODS

Common problems

One book makes the PC feel broken

Disable automatic calc or split the file before you repair all of Office.

People blame Word for a sheet that will not calc

WINWORD does not run Excel formulas. Check EXCEL.EXE and the add-in list.

Getting unstuck

Test excel /safe

That skips Excel add-ins. It is not the same switch as winword /safe and it is not Windows Safe Mode.

Watch Power Query refresh before you kill the process

A long refresh is Excel working. Ending EXCEL.EXE mid-refresh can corrupt the cache.

Repair Microsoft 365 Apps if Excel will not launch

Do not download excel.exe from a macro-phishing zip or a filename mill.

Alternatives

Google Sheets, LibreOffice Calc, and Power BI Desktop overlap. Sheets is a browser grid. Power BI is for published reports, not every workbook.

Official help and downloads

Start with the vendor. Random exe sites are not a support channel.

Official contacts
Product page	www.microsoft.com/microsoft-365/excel What Microsoft ships as Excel
Excel help	support.microsoft.com/excel Formulas, files, and print help
Power Query docs	learn.microsoft.com/power-query/ Refresh and mashup help
Install from the web	www.office.com/ Signed-in install that includes Excel on many accounts
Requirements hub	www.microsoft.com/microsoft-365/microsoft-365-and-office-resources CPU, RAM, and OS Microsoft lists

Related hardware

RAM and an SSD matter more than a famous CPU name once books get large. A GPU does not fix a 20-sheet Power Query refresh.

Technical details

Excel feature trains follow the Microsoft 365 channel. This article does not pin a build.

Sources and verification

Reviewed by Feex editorial. Last verified August 2026 Status: Feex Reviewed. How we research.

Microsoft Excel product page · Official Excel product
Microsoft Support: Excel · Formulas, files, and crash help
Microsoft Learn: Power Query · Why refresh can keep Excel busy
Foxhole process map · First-party samples on Windows PCs. Not a lab benchmark.

Was this article useful?

A yes or no is enough. Pick a reason if you want, or add a short note.