How to convert CSV to SLK
- Add your .CSV file - drop it in the box above or click to browse.
- Convert it to .SLK in a few seconds.
- Download your new .SLK file.
What to expect
- SYLK is a legacy interchange format; convert only if a specific program needs it, otherwise .xlsx/.ods is more durable.
- Only cell values and basic structure carry over - no rich formatting or modern spreadsheet features.
- Values are written into spreadsheet cells, so numeric and date values are interpreted rather than left as flat text.
Frequently asked questions
What is an SLK/SYLK file and why convert to it?
SYLK is an older plain-text spreadsheet interchange format Microsoft created for moving cell data between programs. Converting is mainly useful when a legacy application specifically expects SYLK input.
Does the data become a real spreadsheet, unlike CSV?
Yes - SYLK is a cell-based spreadsheet format, so rows and columns are stored as addressable cells rather than one flat text line per row.
What opens an SLK file?
Excel, LibreOffice Calc and Google Sheets can open SYLK. Because the format is dated, re-saving as
.xlsx or .ods afterward keeps the data usable long-term.Are there limits to what SYLK can hold?
SYLK is an old, limited interchange format - it stores cell values and basic structure but lacks the rich features of modern spreadsheet formats, so it is best kept for compatibility rather than archiving.
Programs that convert CSV: Microsoft Excel · Corel Quattro Pro · PlanMaker · Microsoft Works · Microsoft Excel for Mac · Apache OpenOffice Calc (OpenOffice.org Calc) · LibreOffice Calc
