Extract from XLTX
Use this extractor for .xltx files. It can extract images, worksheets, audio, video, embedded files into a ZIP result.
Try Extract from Excel in the browser ->
Extract.FAST uses this same API -- what you see in the browser is what you get in code.
Quick reference
| Field | Value |
|---|---|
| Source file type | .xltx |
| Source group | Documents |
| Submit endpoint | POST https://api.tools.fast/extract |
| Estimate endpoint | POST https://api.tools.fast/extract/estimate/xltx |
| Result | ZIP download |
| Default capabilities | excel.images, excel.worksheets, excel.audio, excel.video, excel.embeddedFiles |
| Max file size | free: 50 MB; pro: 2048 MB |
| Document limits | free: 2000 document units; pro: 2000 document units |
| Duration limits | Not applicable |
Capabilities
| Capability | Default | Options | Pricing | Description |
|---|---|---|---|---|
excel.images | Yes | None | Included | Original image assets saved as separate files. |
excel.worksheets | Yes | None | Included | Worksheet CSV files for analysis or migration. |
excel.audio | Yes | audioFormat | Included | Extracted audio files when present. |
excel.video | Yes | None | Included | Extracted video files when present. |
excel.embeddedFiles | Yes | None | Included | Embedded files recovered as separate files. |
Capability options
Audio
| Option | Type | Default | Allowed values | Limits |
|---|---|---|---|---|
audioFormat | enum | mp3 | mp3, wav, m4a, original, best | None |
Options payload with all capabilities
Use this shape when you want to explicitly configure every supported output for this source type.
{
"extraction": {
"selectedCapabilities": [
"excel.images",
"excel.worksheets",
"excel.audio",
"excel.video",
"excel.embeddedFiles"
],
"includeManifest": true,
"capabilityOptions": {
"excel.audio": {
"audioFormat": "mp3"
}
}
}
}Estimate example
curl -sS -X POST "https://api.tools.fast/extract/estimate/xltx" \
-H "X-Fast-Api-Key: $API_KEY" \
-H "Content-Type: application/json" \
-d '{
"fileSizeMb": 10,
"sheetCount": 12,
"options": {
"extraction": {
"selectedCapabilities": [
"excel.images",
"excel.worksheets",
"excel.audio",
"excel.video",
"excel.embeddedFiles"
],
"includeManifest": true,
"capabilityOptions": {
"excel.audio": {
"audioFormat": "mp3"
}
}
}
}
}'Extract example with all options configured
curl -sS -X POST "https://api.tools.fast/extract" \
-H "X-Fast-Api-Key: $API_KEY" \
-F "[email protected]" \
-F 'options={
"extraction": {
"selectedCapabilities": [
"excel.images",
"excel.worksheets",
"excel.audio",
"excel.video",
"excel.embeddedFiles"
],
"includeManifest": true,
"capabilityOptions": {
"excel.audio": {
"audioFormat": "mp3"
}
}
}
}'Machine-readable discovery
GET /options/xltx
GET /extractors/xltx