Convert ICS to XLSX Online

CONVERT ICS to XLSX ONLINE

1) Upload ICS file to convert

Drop files here, or Click to select

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Allowed file types: fasta, qif, ofx, iif, srt, ics, excel, ris, bib, ods, xls, xlsx, xlsm, csv, tsv, tab, xlsb, xltx, xlr, pxl, qpw, wb3, wq1, dbf, wk3, 123, mdb, evtx, pages, numbers, sqlite

2) Set converting ICS to XLSX options

3) Get converted file

DOWNLOAD CONVERTED FILE

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Convert ICS to XLSX and in many other formats
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Total Excel Converter

Total Excel Converter supports almost all Excel extensions: XLS, XLSX, XLSM, XLSB, XLT, XLTM, XLTX, XLK, XLW. When the new Office is released, we will add new file types too.

With Total Excel Converter you can convert Excel to PDF and add a digital signature in one go.

Total Excel Converter can convert each page of your spreadsheet into a separate file.

Tell Total Excel Converter to copy original time stamps if you don't want to change the date.

Have an outdated Microsoft Office 2003? Update all your old files to the new format in one go. Convert XLS files to XLSX in batches.

Total Excel Converter will help you to convert Excel 2003 XML Files (rare option!)

Total Excel Converter has a built-in renamer to give your files new descriptive names. Include a counter, a date or worksheet name into the file name and your files will be in perfect order.

Convert Excel spread sheets via our most straightforward interface.

The widest list of output file types: DOC, PDF, HTML, MHT, XHTML, CSV, TXT, TIFF, JPEG, SVG, RTF, XML, XLS, XLSX, ODS, ODT, Lotus, DIFF, SYLK, LATEX, SQL, DBF, Access!

Total Excel Converter can combine several Excel spread sheets into one TIFF or PDF file.

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Add your logo or any other image to the header or the footer of the output file.

Want more order? Add page counters or a date to every page of the output files. Sequential numbering of several folders is avaialble.

Total Excel Converter can copy original time stamps if you want to keep them.

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Total Excel Converter can be run via command line (get the ready-to-use command line from GUI).

How to convert ICS to XLSX?

💾 Upload Your File: Go to the site, click on «Upload File,» and select your ICS file.

✍️ Set Conversion Options: Choose XLSX as the output format and adjust any additional options if needed.

Convert and Download: Click 👉«Download Converted File»👈 to get your XLSX file.

Cloud Based

There is no need to install any software to convert ICS to XLSX with CoolUtils. Simply access the internet, and you can easily convert your file online with our service.

Secure

Our hardware operates in top-tier, highly secure data centers equipped with advanced electronic surveillance and multi-factor access control systems.

Ease of Use

Converting ICS iCalendar file to XLSX Excel online has never been so simple. Drop your .ics file and the converter writes an Excel workbook with event columns — perfect for schedule analysis and planning.

Privacy

We understand the importance of privacy, which is why we've developed a comprehensive privacy policy detailing how we handle your files and personal information. You can read the policy here.

ICS File

File extension	.ICS
Category	File
Description	ICS (iCalendar) is a plain-text calendar exchange format for events, to-dos, journals, free/busy data, and time zones. It supports recurrence rules (RRULE), exceptions (EXDATE), and TZID-based time zones for accurate scheduling across systems.
Associated programs	Google Calendar, Apple Calendar, Microsoft Outlook, Mozilla Thunderbird, Evolution
Developed by	IETF (RFC 5545)
MIME type	text/calendar
Useful links	https://datatracker.ietf.org/doc/html/rfc5545More detailed information on ICS files
Conversion type	ICS to XLSX

XLSX File

File extension	.XLSX, .EXCEL
Category	Document File
Description	XLSX is a format from Office Open XML family, a native MS Excel file type starting from version 2007. As opposite to XLS, this format uses ZIP compression that makes XLSX files smaller in size. Actually XLSX file is an archive of XML-documents. The cells in XLSX table can contain plain text, formulas or graphic elements. XLSX can be read in MS Office 2007 and later, Universal Viewer, OpenOffice, MS Office Excel Viewer, Corel WordPerfect Office. This format doesn’t support macros.
Associated programs	Microsoft Excel 2007 OpenOffice OxygenOffice Progessional (Linux)
Developed by	Microsoft
MIME type
Useful links	More detailed information on XLSX files

2026-03-05

I exported our quarterly planning calendar to ICS and converted it to XLSX so the project manager could analyze meeting frequency by team — the Excel file had all event fields in separate columns ready for filtering and pivot tables.

Nadia Korhonen

2026-01-27

Used this to convert a series of ICS files from different team calendars into a single XLSX workbook for a meeting scheduling audit — processing 12 calendar files individually and combining the sheets took less than 10 minutes.

Oliver Marsh

2026-05-18

I needed to track conference sessions from an exported ICS file in an event tracking spreadsheet — converting to XLSX gave me a properly structured table with start time, end time, and location in dedicated columns.

Yuna Park

Rating ICS to XLSX

4.7 (430 votes)Rate It

ICS to XLSX Conversion — FAQ ▼

What is an .ics file?

ICS is the iCalendar format defined in RFC 5545. It is the calendar interchange standard Google Calendar, Outlook, Apple Calendar, and Thunderbird all use for sharing meetings, events, and tasks.

Why convert ICS to XLSX?

Calendars are great for viewing your week, but bad for analysis. XLSX puts each event on a row so you can sort by date, filter by location, sum hours per project, or run pivot tables.

What columns does the XLSX have?

Typical columns are Start, End, Duration, Summary, Location, Description, Organizer, and Status. Recurring events are expanded into individual occurrences within the export range.

Are timezones preserved?

Yes. The converter reads TZID values from the ICS and writes dates in a consistent format. All-day events are flagged so you can distinguish them from timed meetings.

Can I import the XLSX into Google Sheets or Numbers?

Yes. XLSX is the universal spreadsheet format — Excel, Google Sheets, LibreOffice Calc, and Apple Numbers all read it natively.

Will recurring events appear as one row or many?

Recurring events (RRULE) are unfolded into one row per occurrence in the period the file covers, with EXDATE exceptions honoured. That makes per-day reporting straightforward.

Is the conversion free?

Yes. This online ICS-to-XLSX tool is free with a 50 MB upload limit. For year-end calendar reports across many calendars, drive the same conversion from a script.

Convert ICS to XLSX — iCalendar Events to Excel Rows

ICS is the calendar interchange format used by Google Calendar, Outlook, and Apple Calendar. XLSX is the format you need when somebody asks for a list of meetings in a spreadsheet. Converting ICS to XLSX flattens each event into a row with start, end, summary, and location columns. Drop your .ics file above.

What Is ICS?

ICS (iCalendar) is the IETF standard for calendar data, defined in RFC 5545. The file is a plain-text VCALENDAR block containing one or more VEVENT entries with DTSTART, DTEND, SUMMARY, LOCATION, and DESCRIPTION fields. Every modern calendar app — Google, Outlook, Apple, Thunderbird — imports and exports ICS natively.

What Is XLSX?

XLSX is the modern Excel workbook format, introduced with Office 2007 and standardised as Office Open XML (ECMA-376, ISO 29500). The file is a ZIP package of XML parts. Excel, LibreOffice Calc, Google Sheets, and Numbers all read XLSX, making it the universal sheet format for filtering and analysis.

ICS vs XLSX — Format Comparison

Property	ICS	XLSX
Year	1998 (RFC 2445), 2009 (RFC 5545)	2007
Developer	IETF	Microsoft
Data type	Calendar events	Tabular rows
Native viewers	Google, Outlook, Apple Calendar	Excel, Sheets, Numbers
Sortable / filterable	Only in calendar UI	Native (auto-filter)
Math on dates	No	Yes (formulas)
Best for	Sharing meetings	Reporting, analysis

When Do You Need ICS to XLSX Conversion?

Send a monthly meeting log to a manager who wants a spreadsheet, not a calendar
Bill a client by hours per meeting per day
Sort a year of events by location to plan travel reimbursements
Filter a calendar export to a single project or person
Run pivot tables on event categories across teams
Migrate calendar history into a CRM that imports XLSX

Scripted Conversion

For bulk or automated workflows, drive the conversion from a script. A Python or PowerShell loop can call this online converter via HTTP, or perform the same transformation in-process using widely-available libraries.

Online vs Local

Feature	Online (this page)	Local script
File size limit	50 MB	Memory-bound
Batch conversion	One file at a time	Whole folders
Setup	None required	Library install
Privacy	File uploaded to server	Stays on your machine
Best for	One-off conversions	Repeatable pipelines

Feature	Online Converters	CoolUtils Desktop	Excel Built-in	Other Software
Batch Conversion	Limited	✅ Unlimited	Manual only	Limited
File Size Limit	1-5MB	✅ No limits	System dependent	Varies
Privacy & Security	Upload required	✅ 100% offline	✅ Local only	Varies
Conversion Speed	Internet dependent	✅ Fast local processing	Slow	Medium
Advanced Options	Basic	✅ Full customization	Limited	Basic
Cost	Free/Premium	One-time purchase	Requires Office	Subscription
Formatting Preservation	Good	✅ Excellent	Good	Varies
Multiple Formats Support	Limited	✅ 40+ formats	Few formats	Limited