1) Upload ICS file to convert
Drop files here, or Click to select
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
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.
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 |
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 |
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.
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
).
RRULE
/RDATE
series are unfolded into individual rows;
exceptions via EXDATE
are honored so you see the actual meeting instances.TZID
and DST; all-day events are flagged and shown as date ranges.VTODO
items can appear on a “Tasks” sheet (Status, Due, Priority, etc.).[h]:mm
to the Duration column.=EOMONTH([@Start],0)
for month-end or =WEEKNUM([@Start])
for weekly views.;
) to analyze participation.TZID
; mixed sources can lead to offset surprises.SUMMARY
values (“Team Sync – EMEA”) make grouping and pivots clearer.DESCRIPTION
if the sheet will be shared broadly.BEGIN:VCALENDAR
with one or more VEVENT
blocks.TZID
) or DST transitions; re-export with explicit time zone settings.RRULE
or exception patterns can drop instances—validate the source calendar.ATTACH
, reminders, and audio/visual alarms are not embedded in the sheet.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 |