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: qif, iif, srt, ics, feather, 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

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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.

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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 from ICS to XLSX has never been so simple. Our intuitive interface lets you convert files in just a few clicks.

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

Rating ICS to XLSX

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FAQ ▼

How do I convert a ICS to XLSX for free?

To convert ICS to XLSX for free using Coolutils, simply upload your file on our website, select XLSX as your output format, and click "Convert." Our service offers a limited number of free conversions per day without registration.

How do I save an ICS as a XLSX?

To save your ICS as a XLSX with Coolutils, upload your file, choose XLSX from the dropdown menu of available formats, adjust any settings if needed, and click "Convert." Once conversion is complete, download your new XLSX file directly to your device.

How do I open a ICS file?

If you don't have software to open a ICS file, Coolutils can help. Convert it to a more accessible format like PDF or DOCX using our online converter. Simply upload your ICS file, select your preferred output format, and convert it for immediate viewing.

Is it safe to convert my files online?

Yes, converting files with Coolutils is safe. We use secure HTTPS connections, automatically delete all uploaded files within 24 hours, and never share your documents with third parties. For sensitive information, we also offer offline converter solutions.

Can I convert files using my mobile device?

Absolutely! Coolutils is fully compatible with mobile devices. Our responsive website works on smartphones and tablets running iOS or Android. Simply visit our website through your mobile browser, upload your file, select the desired output format, and convert it—no app installation required.

ICS to XLSX: Convert iCalendar Events into an Analysis-Ready Excel Sheet

Need to audit a schedule, share a roster, or build reports from calendar data? This online ICS-to-XLSX converter turns .ics (iCalendar) files into a clean .xlsx workbook you can open in Microsoft Excel, Google Sheets, or LibreOffice—no installs, no signup. Upload your ICS, choose XLSX, and download structured data in seconds.

What Is in an ICS File?

iCalendar (.ics) is used by Google Calendar, Apple Calendar, Outlook, booking systems, and more. It stores events (VEVENT), and sometimes tasks (VTODO) or journal entries (VJOURNAL), with fields like SUMMARY, LOCATION, DESCRIPTION, DTSTART/DTEND, time zones (TZID), and recurrence rules (RRULE, RDATE, EXDATE).

What You Get

Tidy “Events” sheet: One row per event occurrence with columns such as Start, End, Duration, All-day, Title (SUMMARY), Location, Description, Organizer, Attendees (compact list), UID, Categories, and Status.
Recurrences expanded: RRULE/RDATE series are unfolded into individual rows; exceptions via EXDATE are honored so you see the actual meeting instances.
Accurate timing: Time-zone aware fields respect TZID and DST; all-day events are flagged and shown as date ranges.
Optional sheets: If present, VTODO items can appear on a “Tasks” sheet (Status, Due, Priority, etc.).
Clean typing: Start/End as Excel datetimes, Duration as a true time value, booleans for flags—ready for sorting and pivots.

Work Faster in Excel

Show duration clearly: Apply a custom format like [h]:mm to the Duration column.
Bucket by month/week: Add a helper column, e.g. =EOMONTH([@Start],0) for month-end or =WEEKNUM([@Start]) for weekly views.
Pivot for insights: Build pivots by Organizer, Attendee (if split), Category, or Location to see load and utilization.
Split attendees: Use Text to Columns on the Attendees list (delimiter ;) to analyze participation.
All-day vs timed: Filter by the All-day flag to separate multi-day events from timed meetings.

Before You Convert (Best Practices)

Choose the right range: Export only the weeks/months you need for a compact workbook.
Time zones: Ensure your ICS uses the intended TZID; mixed sources can lead to offset surprises.
Clean titles: Short, consistent SUMMARY values (“Team Sync – EMEA”) make grouping and pivots clearer.
Privacy: Remove sensitive notes from DESCRIPTION if the sheet will be shared broadly.

Troubleshooting

“File not recognized”: A valid ICS must include BEGIN:VCALENDAR with one or more VEVENT blocks.
Wrong times: Check for floating times (no TZID) or DST transitions; re-export with explicit time zone settings.
Missing repeats: Malformed/unsupported RRULE or exception patterns can drop instances—validate the source calendar.
Garbled characters: Save the ICS as UTF-8 and ensure long lines are folded per RFC 5545 rules, then reconvert.
Huge workbook: Split by month or calendar; very dense schedules convert faster in smaller chunks.

Notes & Limitations

Snapshot, not live: XLSX won’t update with calendar changes after export.
Attachments & alarms: ATTACH, reminders, and audio/visual alarms are not embedded in the sheet.
Attendee detail: Complex RSVP/status per attendee may be condensed; expand in your calendar if you need per-person columns.

Privacy & Workflow

Conversion runs in your browser session and produces a downloadable XLSX in moments. For recurring jobs—batch processing, watched folders, command-line automation, custom naming, or parallel PDF/HTML outputs—explore CoolUtils desktop tools. From raw iCalendar exports to analysis-ready spreadsheets, this converter makes schedules easy to audit, share, and report on.

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

Convert ICS to XLSX Online

How to convert ICS to XLSX?

ICS File

XLSX File

FAQ ▼

How do I convert a ICS to XLSX for free?

How do I convert a ICS to XLSX for free?

How do I save an ICS as a XLSX?

How do I save an ICS as a XLSX?

How do I open a ICS file?

How do I open a ICS file?

Is it safe to convert my files online?

Is it safe to convert my files online?

Can I convert files using my mobile device?

Can I convert files using my mobile device?

ICS to XLSX: Convert iCalendar Events into an Analysis-Ready Excel Sheet

What Is in an ICS File?

What You Get

Work Faster in Excel

Before You Convert (Best Practices)

Troubleshooting

Notes & Limitations

Privacy & Workflow

Convert from ICS

Convert to XLSX